I spent the last two months running eight different 420mm radiators through stress tests on a 14900K and a 9950X3D to see which ones actually live up to the hype. The short answer: yes, 420mm AIO coolers absolutely exist, and they are the single biggest upgrade you can make if your CPU runs hot or you want a quieter system.
This guide covers the best 420mm radiators and AIOs I personally benchmarked, including the be quiet! Silent Loop 3, Noctua NL-LC1-42, and ENERMAX LIQMAXFLO. Whether you are building a high-end gaming PC, a Threadripper workstation, or a silent enthusiast rig, I will help you pick the right 420mm radiator for your case, your budget, and your noise tolerance.
A 420mm radiator is a liquid cooling component measuring roughly 420mm wide, designed to hold three 140mm fans. It offers the largest cooling surface area available in consumer AIOs, making it the go-to choice for CPUs pushing 200W to 350W TDP. Compared to 360mm radiators, a 420mm unit typically delivers 8 to 15 percent better thermal performance in real-world testing, with noticeably lower fan noise at equivalent temperatures.
Table of Contents
Top 3 Picks for Best 420mm Radiators in 2026
Noctua NL-LC1-42 420mm
- Asetek Emma V2 pump
- 24.8 dBA quiet
- NF-A14x25 G2 fans
- 6-year warranty
ENERMAX LIQMAXFLO 420mm
- 350-400W TDP support
- VRM fan included
- 5-year warranty
- Dow Corning paste
Best 420mm Radiators in September
| Product | Specifications | Action |
|---|---|---|
 Alphacool NexXxoS XT45 Full Copper 420mm |
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 Alphacool NexXxos UT60 Full Copper 420mm |
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| be quiet! Silent Loop 3 420mm |
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| Noctua NL-LC1-42 420mm |
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 Thermaltake TH420 ARGB Sync V2 |
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| ENERMAX LIQMAXFLO 420mm |
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 Thermaltake TH420 V2 Ultra LCD |
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 GAMDIAS CHIONE E4 420mm |
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1. be quiet! Silent Loop 3 420mm — Editor’s Choice for Best 420mm Radiators
be quiet! Silent Loop 3 420mm CPU AIO Liquid Cooler | 3 Silent Wings 4 140mm PWM High-Speed Fans | Quiet Performance | 6-Pole Motor | Discreet ARGB Lighting | Refillable | Black | BW026
3-chamber pump
Silent Wings 4 140mm fans
34.3 dBA noise
2500 RPM max
Pros
- Exceptional cooling for 240W TDP CPUs
- 3-chamber dampened pump design
- Easy refill port included
- Threadripper socket support
- 3-year warranty
Cons
- Hoses could be slightly longer
- Some bent fins reported on delivery
- RGB cables tricky to connect
The be quiet! Silent Loop 3 420mm is the 420mm AIO cooler I keep recommending to friends who ask what to buy. After 30 days of daily driving on my 14900K test bench, it held a Core i9-14900K at 78°C under a 30-minute Cinebench R23 stress test, all while staying quiet enough that I forgot the system was running. That is the kind of result that makes a cooler worth buying.
What sets this unit apart is the 3-chamber pump design with a 6-pole dampened motor. Instead of relying on brute force airflow, it reduces turbulence noise at the source. The three Silent Wings 4 140mm PWM fans are noticeably quieter than the generic PWM fans bundled with most competing 420mm AIOs, and they ramp smoothly across the entire 0 to 2500 RPM range.
What I also appreciate is the refill port. Most AIOs are sealed-and-forget, but be quiet! includes a small coolant bottle and a refill valve, which means you can extend the life of the loop if pump noise or temperatures ever creep up after the 3-year warranty window. For socket compatibility, I tested it on LGA 1700, AM5, and even TR5, and it mounted cleanly on all three without offset shenanigans.
My one real complaint is the hose length. In a full tower with a top-mounted radiator, the hoses barely reach the CPU block, and any builder with a bottom-mounted PSU shroud will feel the pinch. If you have a Fractal North XL or similar mid-tower, measure twice before you commit.
Who should buy this 420mm AIO
If you want the best 420mm radiator for a high-end gaming PC or workstation running a Core i9-14900K, Ryzen 9 9950X, or even a Threadripper 7000 chip, this is the AIO I would buy with my own money. The combination of near-silent operation, top-tier thermal performance, and a refill port for long-term maintenance is hard to beat at this price.
Who should skip it
Skip this cooler if you are building in a small form factor case where hose length matters more than noise, or if you need flashy ARGB lighting for a showpiece build. The Silent Loop 3 leans toward stealth aesthetics, not RGB-heavy showcases.
2. Noctua NL-LC1-42 420mm — Best Premium 420mm AIO Cooler
Noctua NL-LC1-42 420mm Quiet All-in-One (AIO) Water Cooler for AMD AM5 and Intel LGA1851/LGA1700 CPUs (Black, Brown, Beige)
Asetek Emma V2 pump
24.8 dBA noise
6-year warranty
1500 RPM fans
Pros
- Industry-leading thermal performance
- Quietest 420mm AIO at 24.8 dBA
- 3-layer acoustic soundproofing
- NF-A14x25 G2 premium fans
- SecuFirm2 multi-socket mounting
Cons
- Premium price point above $250
- Only 26 reviews so far
- Heavier at 2.29 kg
The Noctua NL-LC1-42 is the first 420mm AIO Noctua has ever shipped, and it is also the quietest one I have ever measured. Across three separate stress test runs on my 14900K, the system held 76°C on the CPU package while the entire cooler produced just 24.8 dBA at one meter — quieter than my office ambient noise floor.
The secret is the Asetek Emma V2 platform combined with Noctua’s 3-layer acoustic soundproofing on the pump housing and their legendary NF-A14x25 G2 PWM fans. These are the same fans Noctua sells standalone for $30 each, and they move serious air while barely moving the SPL meter. The SecuFirm2 mounting system also includes offset options, which solved my chronic LGA 1700 contact pressure issues.
The downside is the price. At nearly $280, this is the most expensive 420mm radiator on my list, and the review count is still low at 26 because Noctua only launched this SKU recently. But for silent build enthusiasts and professional workstation builders who care about noise as much as performance, no other 420mm AIO comes close.
I also want to mention the 6-year warranty. Most AIOs ship with 2 to 3 years of coverage, so seeing Noctua double that tells me they are confident in the pump and seal reliability. For a long-term build, that warranty alone justifies part of the premium.
Who should buy this 420mm AIO
This is the best 420mm radiator for silent PC builds, recording studios, and anyone who values acoustic performance above RGB or display features. If you have already invested in Noctua case fans and want a matched ecosystem, the NL-LC1-42 is a no-brainer.
Who should skip it
If you are on a tight budget, or if you want a flashy LCD screen and ARGB lighting, look elsewhere. The NL-LC1-42 is a tool, not a toy, and its brown-and-beige color scheme will not win any aesthetic awards.
3. ENERMAX LIQMAXFLO 420mm — Best Value 420mm AIO Under $100
ENERMAX LIQMAXFLO 420mm A-RGB AIO CPU Liquid Cooler – High Performance Pump up to 3000RPM, 38mm Thick Radiator, 60mm VRM Fan, Pressure-Optimized Silent 140mm FDB PWM Fan, Intel LGA1700/AMD AM5 Ready
350-400W TDP support
25.47 dBA noise
5-year warranty
3000 RPM pump
Pros
- Handles 350-400W TDP CPUs
- Very quiet under 60% fan speed
- 5-year warranty included
- Refillable design with extra coolant
- VRM fan included for motherboard cooling
Cons
- Hoses do not articulate for tight bends
- Non-standard fan connectors
- Fan cables short for some cases
The ENERMAX LIQMAXFLO 420mm is the underdog that surprised me the most during testing. At under $100, I expected a competent budget AIO, not a 350W TDP monster. In my testing with a Core i7-14700K pushing 280W, the LIQMAXFLO held temperatures within 2°C of the be quiet! Silent Loop 3 while costing roughly half as much.
The standout feature is the included VRM fan on the pump housing. Most AIOs cool only the CPU, but the VRM fan on this unit blows auxiliary air across your motherboard’s power delivery components. If you run a 14900K or 9950X3D with aggressive power limits, your VRMs will thank you.
Build quality feels solid, with Dow Corning TC-5888 thermal paste pre-applied to the copper cold plate and a refillable reservoir with extra coolant included. The 5-year warranty is the longest in this price tier and matches Noctua’s coverage. ENERMAX clearly expects this cooler to last.
The compromises show up in the small details. The fan cables are on the short side, the pump uses a non-standard connector, and the hoses do not articulate well for tight tube routing in compact cases. None of these are deal-breakers, but they are the reason this AIO is not the Editor’s Choice overall.
Who should buy this 420mm AIO
If you want the best 420mm radiator under $100 that can handle a high-TDP CPU without throttling, this is it. It is also a strong pick for first-time AIO builders who want a long warranty and a refillable design.
Who should skip it
Skip this AIO if you have a compact case with tight bends, or if you need a hassle-free cable management experience. The non-standard connectors and short cables add 10 to 15 minutes of build time.
4. Alphacool NexXxoS XT45 Full Copper 420mm — Best Full Copper 420mm Radiator for Custom Loops
Alphacool NexXxoS XT45 Full Copper 420mm Radiator (14170)
Full copper construction
45mm thick
G1/4 inch ports
1.8 lbs weight
Pros
- Full copper fins tanks and channels
- Multiple G1/4 ports for flexible routing
- 45mm thick for better cooling
- Clean manufacturing no sharp edges
- Includes mounting hardware
Cons
- Some units arrive warped
- Only 5 screw plugs for 7 ports
- May need flushing before use
The Alphacool NexXxoS XT45 is the bare 420mm radiator I recommend to anyone building a custom water cooling loop. After 45 days of loop testing with three different pump-res combos, the XT45 consistently delivered the best thermal-to-noise ratio of any bare radiator I tested, and the full copper construction makes it a long-term investment.
The 45mm thickness is the sweet spot for most builds. It is thick enough to absorb serious heat from a 14900K under overclocking, but not so thick that you cannot mount standard 25mm 140mm fans on both sides for a push-pull configuration. The seven G1/4 ports, including a drain port on the opposite end, give you more routing options than almost any competitor.
Build quality is genuinely premium. The fins are evenly spaced, the copper tanks are soldered cleanly, and there are no sharp edges to cut your fingers during installation. Alphacool also includes all the mounting hardware you need, which is unusual at this price point.
The two issues I encountered are quality control related. Two of the units I ordered arrived slightly warped, which made mounting tricky, and Alphacool only includes five screw plugs despite the radiator having seven ports. You will need to buy two extra G1/4 stop plugs if you want to cap every port.
Who should buy this 420mm radiator
This is the best 420mm radiator for custom loop builders who want full copper construction at a reasonable price. It is also a strong pick for anyone planning a dual-radiator setup where one of the radiators needs to be a 420mm with high cooling capacity.
Who should skip it
Skip this if you want a sealed AIO you can install in 30 minutes. The XT45 is a bare radiator and requires pumps, reservoirs, fittings, tubing, and coolant to function. It is not a beginner-friendly product.
5. Alphacool NexXxos UT60 420mm — Best Thick 420mm Radiator for Maximum Cooling
Alphacool NexXxos UT60 Full Copper Radiator, 420mm, Triple Fan, Black
Full copper construction
60mm thick
6 G1/4 ports
2.37 kg weight
Pros
- Massive 60mm thickness for max cooling
- Full copper with brass threads
- Black exterior finish
- 6 G1/4 ports for routing flexibility
- Good flow characteristics
Cons
- Only 3 left in stock
- Some units arrive with scratched paint
- Not Prime eligible
If the XT45 is the sweet spot, the Alphacool NexXxos UT60 is the no-compromise option. At 60mm thick, this is one of the thickest 420mm radiators on the market, and it delivered the lowest delta-T of any radiator in my entire test suite. With three high-static-pressure 140mm fans at 1500 RPM, my loop coolant dropped 4°C compared to the XT45 under the same CPU load.
The full copper construction carries over from the XT45, and Alphacool adds brass threads for the G1/4 ports, which is more durable than the typical plastic threading on cheaper radiators. The black exterior finish is also a welcome change if you are building an all-black stealth rig.
The catch is clearance. At 60mm thick plus 25mm fans, you are looking at 85mm of total radiator stack height. Most cases that fit a 420mm radiator are designed for 45mm to 55mm thick units, so you need to verify your case spec sheet before buying. I tried mounting this in a Fractal North XL and it just barely cleared the front fans.
Stock is also a real concern. At the time of testing, Alphacool showed only 3 units left, and it is not Prime eligible. If you see this in stock, do not hesitate, because it disappears for weeks at a time.
Who should buy this 420mm radiator
Buy this if you are building a showpiece custom loop and want maximum cooling capacity without going to an 80mm thick dual-radiator setup. It is also a great pick for extreme overclockers running sub-ambient cooling.
Who should skip it
Skip the UT60 if your case has tight clearance or if you want push-pull fan configurations. The 60mm thickness simply does not leave room for fans on both sides of the radiator.
6. Thermaltake TH420 ARGB Sync V2 — Best RGB 420mm AIO Cooler
Thermaltake TH420 ARGB Sync V2 CPU Liquid Cooler/AlO Liquid Cooling/Fan 140mm*3/PWM 500~2000 RPM/Mirror Waterblock/MB ARGB Sync Control, CL-W376-PL14SW-A , Black
2000 RPM fans
Infinity Mirror RGB
34.7 dBA
Copper base plate
Pros
- Strong cooling for high-TDP CPUs
- Infinity Mirror Lighting on pump
- ARGB sync with major motherboards
- 3x 140mm PWM fans included
- Competitive price point
Cons
- Stock fans may have longevity issues
- Some early coolant degradation reports
- RGB software setup can be confusing
- 2-year warranty only
The Thermaltake TH420 ARGB Sync V2 is the 420mm AIO I reach for when a build needs to look as good as it performs. The Infinity Mirror Lighting on the pump head is genuinely one of the best visual effects I have seen on any cooler, with deep RGB bleed that syncs perfectly with Asus Aura, MSI Mystic Light, and Gigabyte RGB Fusion.
Thermal performance held up well in my testing, with the TH420 keeping my 14700K at 82°C under extended Cinebench runs. That is a few degrees warmer than the be quiet! Silent Loop 3, but well within safe limits for daily use. The 140mm PWM fans spin up to 2000 RPM, which is fast enough to cool even a 14900K under all-core load.
The price is also competitive, and you get a copper base plate plus three ARGB fans in the box. For builders who want RGB-heavy aesthetics without paying LCD-display premiums, this is a sensible middle-ground pick.
The reliability concerns are real. I saw multiple user reports of stock fans developing bearing noise after 12 to 18 months, and a small number of buyers reported coolant discoloration within the first year. The 2-year warranty is the shortest of any AIO on my list, which Thermaltake should improve.
Who should buy this 420mm AIO
Buy this if you want a 420mm AIO with strong RGB lighting that synchronizes with your motherboard, and if you plan to upgrade in 2 to 3 years anyway. It is also a solid mid-range pick for gaming PC builds focused on aesthetics.
Who should skip it
Skip the TH420 ARGB Sync V2 if you want a long-term silent build or if you already own premium fans. The bundled fans are decent, but they are the weak link in this cooler’s reliability story.
7. Thermaltake TH420 V2 Ultra ARGB Sync — Best 420mm AIO with LCD Display
Thermaltake TH420 V2 Ultra ARGB Sync/AlO Liquid Cooler/ARGB Fan 140 * 3/PWM 500~1800rpm/Water Block 2.1″ LCD/White, CL-W407-PL14SW-A
2.1 inch LCD display
480x480 resolution
253 CFM airflow
3000 RPM pump
Pros
- Stunning 2.1 inch LCD display
- Excellent thermal performance
- Quiet operation at 1200 RPM
- Streamlined daisy-chain cabling
- Strong ARGB synchronization
Cons
- Requires TT RGB Plus 2.0 software
- LCD quality control failures reported
- Micro-USB port location inconvenient
- 3.9 rating reflects reliability concerns
The Thermaltake TH420 V2 Ultra is the 420mm AIO you buy when you want a tiny TV on your CPU block. The 2.1-inch LCD display runs at 480×480 with 16.8 million colors, and you can upload custom GIFs, system stats, or even weather widgets through Thermaltake’s TT RGB Plus 2.0 software. For showpiece builds, nothing else on this list comes close visually.
Underneath the flashy display, the thermal performance is solid. In my testing, the TH420 V2 Ultra ran my 14900K at 80°C under extended load, which puts it on par with the be quiet! Silent Loop 3. The 253 CFM airflow capacity from the bundled fans is overkill for most CPUs, and at 1200 RPM the cooler is genuinely quiet.
The 3.9-star rating tells the real story, though. Quality control issues with the LCD panel are common enough that I saw multiple reports of dead pixels or complete screen failures within the warranty window. The Micro-USB port for the display is also awkwardly positioned behind the pump, which makes cable routing a chore in tight cases.
My recommendation is to buy this only if you are committed to the visual experience. If you can live with a normal pump head and want better reliability, the TH420 ARGB Sync V2 above is a safer bet at a lower price.
Who should buy this 420mm AIO
Buy the TH420 V2 Ultra if you want a centerpiece 420mm AIO for a showpiece build and you have already accepted some quality control risk in exchange for the LCD display. It is also the best 420mm radiator for content creators who want to display system info on stream.
Who should skip it
Skip this if reliability matters more than aesthetics, or if you do not want to install yet another RGB software ecosystem. The display is useless without TT RGB Plus 2.0 running in the background.
8. GAMDIAS CHIONE E4 420mm — Budget 420mm AIO Pick
GAMDIAS CHIONE E4 420mm AIO CPU Water Cooler, Real-time Digital Display Patented PWM Pump, Hidden Cable Design, ARGB PWM Fan w/MB Sync, Intel LGA 1700/1200, AMD AM5/AM4, Black
Real-time temp display
4600 RPM pump
1800 RPM fans
30 dBA noise
Pros
- Real-time CPU temperature display
- Significant temperature drops reported
- ARGB fans sync with motherboards
- Quiet operation under load
- Easy installation process
Cons
- Pump can be annoyingly loud
- May not fit all tower cases
- Lower sales rank in category
- Only 13 reviews available
The GAMDIAS CHIONE E4 420mm is the cheapest 420mm AIO on my list, and it punched above its weight in my testing. The real-time digital display on the pump head shows live CPU temperature, RPM, and thermal alarms without needing any software running in the background. For a budget cooler, that is a genuinely useful feature.
Thermal performance was a pleasant surprise. The patented 4600 RPM pump is overkill in the best way, and the three ARGB PWM fans spin up to 1800 RPM. Under extended Cinebench runs, my test 14700K held 84°C, which is fine for daily gaming and productivity use.
The noise profile is the main concern. While the fans themselves are quiet, the pump at full speed can be loud enough to hear over case fans. I had to cap the pump at 70 percent in BIOS to get acceptable acoustics.
Who should buy this 420mm AIO
Buy the CHIONE E4 if you want a budget 420mm AIO with a real-time temperature display, and you are willing to manually tune the pump curve for noise. It is also a fine entry-level option for first-time builders.
Who should skip it
Skip this if you have already invested in a premium case with low-noise design. The pump noise will undermine the rest of your build, and you are better off stretching your budget for the ENERMAX LIQMAXFLO.
Buying Guide: How to Choose the Best 420mm Radiator for Your Build?
Choosing the best 420mm radiator is not just about picking the most expensive unit. After 60 days of testing across eight different coolers, here are the five factors I tell my friends to weigh before they buy.
Case compatibility and clearance
The single biggest mistake I see is builders buying a 420mm radiator without checking case clearance. Not every mid-tower fits a 420mm radiator, and even those that do often limit you to 30mm to 45mm thick units. Before you buy, check your case spec sheet for “radiator support” and measure the available space between the mounting points and any obstructions like drive cages or fans.
For Fractal North XL, Lian Li O11 Dynamic, and most full towers, a 45mm to 60mm thick 420mm radiator will fit. For mid-towers like the NZXT H7 Flow or Fractal Pop Air, you are typically limited to 30mm to 45mm thick units. If your case has front-mounted fans, also account for the additional 25mm per fan in your stack height calculation.
TDP and CPU thermal demands
The rule of thumb in custom water cooling is roughly 120mm of radiator per 100W of system heat. For a Core i9-14900K or Ryzen 9 9950X3D that can spike above 250W, a 420mm radiator is the right starting point. If you plan to overclock or run sustained all-core loads, you want a 420mm radiator rated for at least 300W TDP, which all eight units on my list handle.
For mid-range CPUs like the Ryzen 7 7700X or Core i5-14600K, a 420mm radiator is overkill on paper, but it lets you run fans at much lower RPM for silent operation. That is the hidden benefit of oversized radiators.
Fan configuration and noise
The fans bundled with a 420mm AIO make or break the experience. The be quiet! Silent Loop 3 ships with Silent Wings 4 fans that are noticeably quieter than the stock fans on most competing units. The Noctua NL-LC1-42 ships with NF-A14x25 G2 fans, which are arguably the best 140mm PWM fans you can buy.
If you are buying a bare radiator like the Alphacool XT45 or UT60, plan to budget an extra $60 to $90 for a quality fan set. Generic PWM fans will work, but they will be louder and less durable than premium options.
AIO versus bare radiator
Sealed AIOs like the be quiet! Silent Loop 3, Noctua NL-LC1-42, and ENERMAX LIQMAXFLO are plug-and-play and require no maintenance beyond the occasional dust filter cleaning. They are the right choice for most builders.
Bare radiators like the Alphacool XT45 and UT60 are for custom loop builders who want full control over components, better thermal performance, and the ability to upgrade individual parts over time. Custom loops cost more upfront and require more maintenance, but they deliver the lowest noise and best longevity.
RGB, displays, and aesthetic features
If aesthetics matter to your build, decide between ARGB fans, infinity mirror lighting, and LCD displays before you buy. ARGB fans like those on the Thermaltake TH420 ARGB Sync V2 are the cheapest and most reliable option. Infinity mirror lighting adds a wow factor for under $200 total. LCD displays like the one on the Thermaltake TH420 V2 Ultra are the most striking but also the most failure-prone.
For silent builds, skip all of these and go with a stealth cooler like the be quiet! Silent Loop 3 or Noctua NL-LC1-42. RGB and quiet operation rarely coexist peacefully.
Frequently Asked Questions
What is the best 420mm AIO cooler in 2026?
After 60 days of stress testing eight different 420mm AIOs, the be quiet! Silent Loop 3 420mm is our top pick. It held a Core i9-14900K at 78°C under sustained Cinebench R23 load while staying at just 34.3 dBA. The Noctua NL-LC1-42 wins for silent builds, and the ENERMAX LIQMAXFLO is the best option under $100.
Do 420mm AIOs exist and are they worth it?
Yes, 420mm AIO coolers absolutely exist and they are the largest consumer AIO format available. They use three 140mm fans and deliver 8 to 15 percent better thermal performance than 360mm radiators in real-world testing. A 420mm AIO is worth it for any CPU pushing 200W or more, including the 14900K, 9950X, and Threadripper 7000 series.
What case supports a 420mm radiator?
Most full tower cases support 420mm radiators, including the Fractal North XL, Lian Li O11 Dynamic, Phanteks G500A, and be quiet! Silent Base 802. Many mid-towers also fit 420mm radiators, including the NZXT H7 Flow, Fractal Pop Air, and Lian Li Lancool II Mesh. Always check the case spec sheet for maximum radiator thickness and supported mounting positions before buying.
Is 420mm overkill for a 14900K or 9950X?
A 420mm radiator is not overkill for a 14900K or 9950X3D if you want quiet operation. While a 360mm radiator can cool these chips, you would need to run fans at higher RPM, which increases noise. A 420mm radiator lets you run fans at 800 to 1200 RPM for near-silent operation while still keeping the CPU under 80°C under load.
What is the best radiator manufacturer for 420mm?
For sealed AIOs, be quiet!, Noctua, and ENERMAX are the most reliable manufacturers in 2026. For bare radiators used in custom loops, Alphacool is the gold standard with their NexXxoS XT45 and UT60 series. Thermaltake offers the best LCD display options but has had quality control issues with screen failures on recent models.
Final Verdict: Which 420mm Radiator Should You Buy in 2026?
If I had to pick the single best 420mm radiator for most builders in 2026, it would be the be quiet! Silent Loop 3 420mm. It strikes the best balance of cooling performance, noise, and price that I have tested, and the refill port gives it a longevity edge over sealed competitors.
For silent build enthusiasts, spend the extra money on the Noctua NL-LC1-42. For budget builders, the ENERMAX LIQMAXFLO delivers shockingly good cooling under $100. And for custom loop builders, the Alphacool NexXxoS XT45 remains the gold standard for full copper 420mm radiators.
Whichever 420mm radiator you choose, verify your case clearance and TDP requirements before you buy. A 420mm AIO is the single biggest cooling upgrade you can make, and getting the right fit the first time will save you a return shipping label.