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Cooler Master > 
Item#: N82E16835103196

Cooler Master Glacer 240L – Expandable CPU Liquid Water Cooling System with 240mm Copper Radiator and 2 Fans

  • 2400 RPM 86.15 CFM
  • Radiator Dim. 269mm x 127mm x 29mm
  • Fan Dim. 120mm x 120mm x 25mm
  • Fan Noise 19 - 40.33 dBa
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Learn more about the Cooler Master RL-G24L-24PK-R1


Glacer 240L
Liquid Cooling System


Radiator Dim.
269mm x 127mm x 29mm
Radiator Material


Fan Dim.
120mm x 120mm x 25mm
2400 RPM
Fan Air Flow
86.15 CFM
Fan Noise
19 - 40.33 dBa


Tube Dim.
Dimensions: 5/8" x 3/8"
Length: 420mm
Tube Material


Static Pressure: 0.31 - 4.16 mmH20
Fan Type: Blademaster 120

Speed: 1200 - 3500 RPM
Voltage: 12V
Power: 13W
Connector: 4-Pin PWM, SATA Power
Head: 2650 mmH20

Factory filled with coolant, then sealed and pressure tested - requires zero maintenance for years.

High performance expandable system can be upgraded to cool other components.

Tuned for top performance with a 3500 rpm pump system.

Performance 240mm radiator is designed for handling high wattage overclocked CPUs.

Copper waterblock with copper/brass radiator for excellent heat dissipation.

Quick Info


  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years

Customer Reviews of the Cooler Master RL-G24L-24PK-R1

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  • Guo C.
  • 4/3/2014 5:34:07 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsBe aware

Pros: It was a great unit lot of cool temp for the cpu keeps under 35c push and pull. The fan came with the unit is great.

Cons: Well the wire going to the pump unit, shorted out and then the small fire
broke out. Lucky my system is okay. I'm going to stick to air cool after this incident. The motherboard had shut down good thing because it shut off the current.

Other Thoughts: Anything anytime it just happen. Hopefully there not a lot of units out there like this kind of problem.

Manufacturer Response:

Hello Anonymous,

My name is Robert and I am so glad to hear your system is ok. If you have not returned the product, please contact us via livechat/phone, and we can make sure to get you setup with a replacement. Though you have mentioned that you are going with air cooling, would you still be willing to contact us? So we can see what went wrong with the product, if its a simple fix, and make sure issues like this do not arise with future products.

Telephone: 888-624-5099


CM USA Support

Did you find this review helpful? Yes No

  • michael h.
  • 3/31/2014 7:18:16 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsgreat-until it wasnt

Pros: good design great cooling ability

Cons: only works intermittently over last week or so

Other Thoughts: be great if pump was dependable. the pump has been shutting down/not coming on over the last week or so. last 2 times it wouldn't come on during startup made a kinda grinding noise.
going to rma it but given that it was a tight fit going in and the corsair air fans I put on the rad weren't a great fit am not looking forward to uninstall/reinstall.
and of course durability is now a major concern. maybe that's why they ony offer 3yr warranty on this unit...

Manufacturer Response:

Dear Customer,

We sincerely apologize for the trouble you had with our cooler. We can definitely help in making this right. Would it be possible if you could contact us so we can help in replacing this unit under warranty coverage and rectify the situation?


Marvin R.
CMUSA Support.


Did you find this review helpful? Yes No

  • michael h.
  • 3/31/2014 6:45:58 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsgreat when working..

Pros: good design/cooling ability.

Cons: stops/wont work intermittently.

Other Thoughts: installation was fairly easy, replaced fans with corsair fans-similar air pressure lees noise and better looking. worked great( my haswell i7 is running stable at 4.2 and never goes above 61c no matter what I throw at it) until a week or so ago- pump shut down. I went thru rechecked all the wiring, all is good. started working again(nothing I did) so went on using comp. turned it on a cpl of days ago and got a kind of grinding noise when I turned on my comp, by the time I botted into windows cooler fans were going at a pretty good clip so checked and pump wasn't working again. turned it off unplugged psu and came back later, np.
started up today same noise, nothing I have tried gets the pump running.
im going to have to rma this thing, taking it out is going to be a pain(was a very tight fit) same goes for installing again. also worried about long term duarability, guess there is a reason they only offer 3 yrs on this unit.

Manufacturer Response:

Hi Mike2h,

We are sorry to hear what happened to your cooler. This is not normal operation for this specific cooler. Would it be possible if you could contact us so we can get this replaced for you under the warranty coverage it carries? We wish to rectify the situation to your favor.


Marvin R.
CMUSA Support.

Did you find this review helpful? Yes No

  • Robert F.
  • 3/30/2014 9:41:55 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

4 out of 5 eggsYou know you want it!

Pros: Quiet
Exceptional at keeping my AMD A10-7850K Kaveri 3.7GHz OC'd to 4.1GHz @ 28`C

Cons: Couple others have said it, but I'll say it again.
The instruction manual leaves you wanting. Seems like I'm looking at the rough draft that someone forgot to revise. I may be able to work my way through just because I want the end result but others may not be as attentive in their endeavors. This isn't why I docked an egg though.

I took an egg away because the fans were actually installed upside down on the one I got. They would have been blowing into the case had I not been double and triple checking everything. The instruction manual actually helped some in that respect. The photo of how it's supposed to be mounted inside the case and how the airflow goes verified my findings as I inspected the setup.
Check your fan orientations before installing.
If you find you have to flip your fans around you will also need a slim Phillips to fit through one side of the fan to be able to get at the screws.

Other Thoughts: AMD A10-7850K Kaveri 3.7GHz
OC'd @ 4.1 GHz running at 28`C
Cooler Master HAF 922

This cooler barely cleared the motherboard top heat sink in this case.
Mine squeaked in so they aren't touching but extremely close. Like 1mm or less kind of close.
Interestingly, the ASUS A88X-PRO heat sink design happens to have that part of the heat sink machined out where the lip of a radiator could possibly pass through without the two resting on each other.

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  • Erik G.
  • 3/20/2014 8:01:08 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggs

Pros: Works as advertised - FX8350@4.6ghz is running sub 40c after a 4 hour stress test. Exhaust air is running 29c at 23c ambient.

Cons: I won't knock off an egg for overdesign, but the fans probably put out more CFM than the air handler at my house. It is great to have that option, but even throttling them down to 40% still drowns out the pump and my GFX card fans. I swapped the jet engines for some quiet corsair fans and re-ran my torture test. CPU temps were still sub 40c and exhaust air was 31c at 23c ambient. For 2c delta on the air, save your eardrums.

What I will knock an egg of for is not having a PWM fan splitter, which is a requirement if you are going to run this off your motherboard "cpufan". The fans are independently powered and need this 20 cent cable.

Other Thoughts: This is a dual 120mm that will fit inside the CM HAF922 case.

Don't go bush league and attach one to the PWR_fan and one to CPU_fan. Get a splitter or a fan controller. You can attach the pump to the pwr_fan, or sys_fan as I believe it is just an on/off and powered independently by the sata connector.

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  • Anonymous
  • 3/18/2014 8:17:24 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggs3 months

Pros: Cools great. Painless RMA. Sharp looking.

Cons: Pump lasted 3 months until the pump stopped working. Total RMA process through CM took about 2 weeks. Cooler works great I think I just got a dud...I did order this as soon as it was available after the first lot sold out. Wondering if the manufacturing was a little rushed.

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  • Michael W.
  • 3/15/2014 9:41:23 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsThe Tale of the Little Glacer

Pros: At the time of purchasing this kit, it was at the same price as the H100i and similar 240mm radiator kits. It has longer tubes by default, and a more powerful pump that is expandable for multiple radiators and blocks. It is, as other have mentioned, a rebrand of the Swiftech H220 but with a bumped up RPM on the pump. This means it can handle an even bigger loop than the H220. Came with all the mounting hardware needed for both Intel and AMD sockets. Clean matte black finish throughout. Put some Corsair SP120 PWM fans on it, and at full RPM my Phenom X6 1100T @ 4GHz & 1.5v runs ~45c at full load under OCCT in linpack mode. That's nothing short of amazing. This kit could probably hold an FX-9590 @ 6GHz too, but haven't tested it on that yet. Likely won't since mine has a better kit already.

Cons: That 1100T is on a Biostar Extreme 990FX motherboard. The heatsink for the mosfets are just 1mm too close to the CPU socket to mount the pump/block as instructed for AMD systems. I had to get creative and flip the AMD brackets under the Intel and then use the shorter Intel thumbscrews to hold it down at a 90 degree rotation. Specifically, the 90 degree fitting for the pump/block is that 1mm too far out for this particular motherboard. Thankfully, it looks like it's been discontinued, but that doesn't mean nobody else has one. Oh and be careful with the knurling on the screws doing it like that; it grinds into the plastic of the pump/block fittings. I would recommend tightening those screws first to minimize that, then the other two. Just be aware that the way this mounts to AMD sockets, may be restricted on some motherboards due to how close the mosfet heatsink is to the socket. If you can fit an Intel mount in the socket, there's a good chance this will mount to it without issue.

Other Thoughts: I would've preferred the same mounting system as the Apogee Drive II. That has swappable brackets rather than mounting the AMD brackets to the Intel brackets. Just looks much cleaner. I know this isn't Cooler Master's fault, it's Swiftech's. But hey; ALL-COPPER radiator and a powerful pump/block in an expandable AIO for about the same price as closed 240mm AIO kits with weaker pumps and aluminum fins in their radiators? No-brainer, come on...

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  • Regan M.
  • 2/24/2014 11:45:22 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggs2 Months and now =(

Pros: Worked awesome on my 9590 had no issues. Barely use the PC though

Cons: Sounds like water trickling now and keeps BSOD/ I honestly do not feel comfortable with it sounding like a waterfall sitting over my 780Ti's Sounds to me the Pump is dying or about dead.... Awesome when it worked =(

Did you find this review helpful? Yes No

  • James B.
  • 2/24/2014 10:20:26 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsperfect

Pros: very quite and keeps every thing cool. easy to install in a full tower

Cons: not much of a con but during system boot the fans rev up to 100% and can be a littler loud but after a few sec it goes down and you don't hear it

Other Thoughts: cpu stays at 30c even when playing BF4 at max settings with the following hardware

asus sabertooth z87 mobo
8gigs gskill sniper series ram
evga gtx 760
Intel Core i5-4670 Haswell
CORSAIR AX series AX760
CM Storm Trooper
Cooler Master Glacer 240L
Creative Sound Blaster Z

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  • nicholas e.
  • 1/24/2014 7:54:15 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsGreat Cooling, Used to be Silent

Pros: -Great Cooling
-Easy Setup
-Good Price-to-Performance

Cons: -Expansion requires hunting down components
-Pump might be in pre-fail state after 1 /12 months

Other Thoughts: This system is great overall. Installation was a breeze. Does a great job keeping things cool. This would be 5 eggs, but for the fact the I came home from vacation, having left my system up for media streaming, and discovered that the pump was making a tolerable but unpleasant mechanical whine. This has not stopped in the month since I returned home, which is disappointing because initially the system was virtually silent, even under a demanding gaming load (with Handbrake running video conversion in the background to boot!). I would still recommend this system to anyone, as I imagine my experience with a noisy pump is in the minority.

2 out of 4 people found this review helpful. Did you? Yes No

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Water / Liquid Cooling > 
Cooler Master > 
Item#: N82E16835103196
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