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PC Water Cooling Reservoirs
Your pc water cooling reservoir capacity is an important variable in your liquid cooling system. The computer water cooling reservoir size determines the overall cooling capacity of your water cooled system. Increasing the reservoir size increases the amount of water in the system which allows for greater heat dissipation.

FrozenCPU carries the latest computer water cooling reservoirs from external reservoirs, passive reservoirs, internal reservoirs, bay reservoirs and reservoir accessories. We stocks the latest Bitspower reservoirs, Danger Den reservoirs, EK reservoirs, Innovatek reservoirs, Koolance reservoirs, Primochill reservoirs, Swiftech reservoirs, Tecnofront reservoirs, ThermalTake reservoir and XSPC reservoirs.

Swiftech MCRES Micro Rev. 2 Small Form Factor / High-Flow Reservoir (1/2" ID & 3/8" ID)
Swiftech MCRES Micro Rev. 2 Small Form Factor / High-Flow Reservoir (1/2" ID & 3/8" ID) The MCRES-MICRO Revision 2 reservoir shares all the good things that characterized the classic MCRES Micro in size, quality, and provided accessories, but it also includes additional enhancements and functionalities that have been requested by enthusiast users. The most noticeable feature is an additional port at the bottom of the unit. All threa...
3 In Stock, Ships Today Till 4pm EST
$39.99
Bykski B-CT-AGC Rifle Cylinder Reservoir
Bykski B-CT-AGC Rifle Cylinder Reservoir High quality raw materials (acrylic, sealing rings, etc.), and passed the Bykski water-cooling laboratory SPD (safety, performance, durability) testing. 50MM diameter reservoir body, especially suitable for medium tower, full tower chassis use. International standard G1/4 threads are compatible with all current brands of water-cooling systems. ...
Orderable, Stock Expected 1-18 Days
$23.80 - $29.99
Bykski B-DNA-CT-POM DNA POM T Virus Cylinder Reservoir
Bykski B-DNA-CT-POM DNA POM T Virus Cylinder Reservoir Bykski B-DNA-CT-POM 180mm, 260mm DNA POMT Virus Cylinder Reservoir
7 In Stock, Ships Today Till 4pm EST
$29.99 - $35.99
Bykski B-DNA-CT-W White DNA POMT Virus Cylinder Reservoir
Bykski B-DNA-CT-W White DNA POMT Virus Cylinder Reservoir Bykski’s DNA-CT Series Reservoirs are guaranteed to bring attention to your PC builds! With it’s unique aesthetics and premium design, your PC will no longer be considered “generic”. By adding your DNA-CT Series Reservoir, you will have an easy and effective way of storing and filling your custom loops with your favorite fluids.
Out of Stock
$29.99 - $35.99

PC Water Cooling Reservoirs Categories
Bay Reservoirs Reservoir Accessories Reservoir/Radiator Combo 
External Reservoirs Reservoir Calming Coils Radiator/Pump/Res Combo 
Internal Reservoirs Reservoir Covers FrozenQ PC Mod Series 
Pump/Resevoir Combo   

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Alphacool "Bubble Down" G1/4 Thread Reservoir Flow Regulator - Deep Black (15168) Alphacool "Bubble Down" G1/4 Thread Reservoir Flow Regulator - Deep Black (15168)
Brand: Alphacool  

The Alphacool Bubble Down element serves to prevent turbulence in the reservoir. The sum of many small holes is almost exactly the area of ​​a 1/4 "inch thread, so that the flow will not be reduced. As applied in many Alphacool containers already this part not only serves as a spare part but can be used in most tube or bay reservoirs.


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$2.99

Alphacool Aurora LED Ring 50mm - blue (15260) Alphacool Aurora LED Ring 50mm - blue (15260)
Brand: Alphacool  

Following Alphacool’s motto of “The next step in modding and style”, the Aurora is an easy way to illuminate your reservoir with powerful colour. Versions are available in red, blue, green, white and also UV. This last one is especially suited to UV-active fluids, where the fluid itself begins to glow. Two sizes are available, one for tube reservoirs with a diamete...


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$23.99

Alphacool Aurora LED Ring 50mm - red (15254) Alphacool Aurora LED Ring 50mm - red (15254)
Brand: Alphacool  

Following Alphacool’s motto of “The next step in modding and style”, the Aurora is an easy way to illuminate your reservoir with powerful colour. Versions are available in red, blue, green, white and also UV. This last one is especially suited to UV-active fluids, where the fluid itself begins to glow. Two sizes are available, one for tube reservoirs with a diamete...


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$23.99

Alphacool Aurora LED Ring 50mm - uv (15259) Alphacool Aurora LED Ring 50mm - uv (15259)
Brand: Alphacool  

Following Alphacool’s motto of “The next step in modding and style”, the Aurora is an easy way to illuminate your reservoir with powerful colour. Versions are available in red, blue, green, white and also UV. This last one is especially suited to UV-active fluids, where the fluid itself begins to glow. Two sizes are available, one for tube reservoirs with a diamete...


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$23.99

Alphacool Aurora LED Ring 50mm - white (15258) Alphacool Aurora LED Ring 50mm - white (15258)
Brand: Alphacool  

Following Alphacool’s motto of “The next step in modding and style”, the Aurora is an easy way to illuminate your reservoir with powerful colour. Versions are available in red, blue, green, white and also UV. This last one is especially suited to UV-active fluids, where the fluid itself begins to glow. Two sizes are available, one for tube reservoirs with a diamete...


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$23.99

Alphacool Cape Corp Bullseye Bay Adapter - Black (15141) Alphacool Cape Corp Bullseye Bay Adapter - Black (15141)
Brand: Alphacool  

The Cape mounting frame is designed for installation of the Cape Bullseye reservoir in 5.25" drive bays. The faceplate is equipped with a suitable opening for the reservoir as well as respective mounting holes. The mounting frame requires two vacant 5.25" drive bays.


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$25.99

Alphacool Cape Corp Bullseye BEI Adapter - Round Alphacool Cape Corp Bullseye BEI Adapter - Round
Brand: Alphacool  

The Alphacool Cape Corp Bullseye BEI Adapter - Round is an alternative mounting plate for the Alphacool Cape Bullseye.


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$7.99

Alphacool Cape Corp Coolplex Pro 50 LT - 500mm (15720) Alphacool Cape Corp Coolplex Pro 50 LT - 500mm (15720)
Brand: Alphacool  

The Alphacool Cape Coolplex reservoirs have been well-known and popular on the water cooling market for years! But even such great products can sometimes use an update to fulfill even the most recent demands. Hence we at Alphacool have let the old series run out and now introduce the new series with POM end pieces as “LT” and now even with solid metal end pieces as...


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$44.99

Alphacool Dual Bay Reservoir Replacement Faceplate - Black Alphacool Dual Bay Reservoir Replacement Faceplate - Black
Brand: XSPC  

The Alphacool Dual Bay Reservoir Replacement Faceplate can be used to replace the front faceplate on Alphacool dual bay repack series reservoir. These are a black color.


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$4.99

Alphacool Eisbecher D5 150mm Acetal reservoir  (15199) Alphacool Eisbecher D5 150mm Acetal reservoir (15199)
Brand: Alphacool  

The Eisbecher Series consist of 20 different reservoirs that differ between usage, measurement and appearance. There are ten reservoirs within this series that consist of 99% plexi - totally unique! But the main difference between these reservoirs is within the functionality of the different sockets. Included in delivery: 4x M4x25mm screw 8x M4x8mm screw 4x M...


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$74.99

Alphacool Lighttower All-in-One Reservoir / Pump Combo - Black (15048) Alphacool Lighttower All-in-One Reservoir / Pump Combo - Black (15048)
Brand: Alphacool  

The Alphacool “Lighttower” reservoir leads to a new way of design and function. Though most reservoirs are only compatible with one or few pumps, this reservoir can be used with multiple pumps or be used even without a pump. This maximum of flexibility comes from the intelligent construction. If the reservoir needs to be fixed with screws, there are already 4 M4 threa...


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$69.99

Alphacool Lighttower All-in-One Reservoir / Pump Combo w/ Alphacool VPP OT12 Pump - Black Alphacool Lighttower All-in-One Reservoir / Pump Combo w/ Alphacool VPP OT12 Pump - Black
Brand: Alphacool  

The Alphacool “Lighttower” reservoir leads to a new way of design and function. Though most reservoirs are only compatible with one or few pumps, this reservoir can be used with multiple pumps or be used even without a pump. This maximum of flexibility comes from the intelligent construction. If the reservoir needs to be fixed with screws, there are already 4 M4 threa...


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$159.99

Alphacool Lighttower All-in-One Reservoir / Pump Combo w/ Aquastream XT USB Ultra Version Pump - Black Alphacool Lighttower All-in-One Reservoir / Pump Combo w/ Aquastream XT USB Ultra Version Pump - Black
Brand: Alphacool  

The Alphacool “Lighttower” reservoir leads to a new way of design and function. Though most reservoirs are only compatible with one or few pumps, this reservoir can be used with multiple pumps or be used even without a pump. This maximum of flexibility comes from the intelligent construction. If the reservoir needs to be fixed with screws, there are already 4 M4 threa...


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$174.99

Alphacool Lighttower All-in-One Reservoir / Pump Combo w/ Phobya DC12-220 Pump - Black Alphacool Lighttower All-in-One Reservoir / Pump Combo w/ Phobya DC12-220 Pump - Black
Brand: Alphacool  

The Alphacool “Lighttower” reservoir leads to a new way of design and function. Though most reservoirs are only compatible with one or few pumps, this reservoir can be used with multiple pumps or be used even without a pump. This maximum of flexibility comes from the intelligent construction. If the reservoir needs to be fixed with screws, there are already 4 M4 threa...


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$107.99

Alphacool Plexi Replacement Reservoir Tube - 50mm x 100mm - Satin (15179) Alphacool Plexi Replacement Reservoir Tube - 50mm x 100mm - Satin (15179)
Brand: Alphacool  

Alphacool invents the perfect optional upgrade for all Alphacool tubing reservoirs. Satin tubes are now available for both 60mm and 50mm reservoirs. The matte Plexi offers new possibilities in terms of lighting and gives the system some spice! 50mm diameter tube is compatible with Cape Corp Plex series reservoirs.


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$13.99

Alphacool Plexi Replacement Reservoir Tube - 50mm x 150mm - Satin (15180) Alphacool Plexi Replacement Reservoir Tube - 50mm x 150mm - Satin (15180)
Brand: Alphacool  

Alphacool invents the perfect optional upgrade for all Alphacool tubing reservoirs. Satin tubes are now available for both 60mm and 50mm reservoirs. The matte Plexi offers new possibilities in terms of lighting and gives the system some spice! 50mm diameter tube is compatible with Cape Corp Plex series reservoirs.


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$14.99

Alphacool Plexi Replacement Reservoir Tube - 50mm x 213mm - Satin (15181) Alphacool Plexi Replacement Reservoir Tube - 50mm x 213mm - Satin (15181)
Brand: Alphacool  

Alphacool invents the perfect optional upgrade for all Alphacool tubing reservoirs. Satin tubes are now available for both 60mm and 50mm reservoirs. The matte Plexi offers new possibilities in terms of lighting and gives the system some spice!


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$16.99

Alphacool Plexi Replacement Reservoir Tube - 60mm x 100mm - Satin (15182) Alphacool Plexi Replacement Reservoir Tube - 60mm x 100mm - Satin (15182)
Brand: Alphacool  

Alphacool invents the perfect optional upgrade for all Alphacool tubing reservoirs. Satin tubes are now available for both 60mm and 50mm reservoirs. The matte Plexi offers new possibilities in terms of lighting and gives the system some spice! 60mm diameter tube is compatible with Cape Fuzion Core and Cape Cyclone series reservoirs.


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$12.99

Alphacool Plexi Replacement Reservoir Tube - 60mm x 213mm - Satin (15184) Alphacool Plexi Replacement Reservoir Tube - 60mm x 213mm - Satin (15184)
Brand: Alphacool  

Alphacool invents the perfect optional upgrade for all Alphacool tubing reservoirs. Satin tubes are now available for both 60mm and 50mm reservoirs. The matte Plexi offers new possibilities in terms of lighting and gives the system some spice! 60mm diameter tube is compatible with Cape Fuzion Core and Cape Cyclone series reservoirs.


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$16.99

Alphacool Repack Dual 5.25" Acrylic Reservoir - Clear - Dual D5 / MCP655 (15167) Alphacool Repack Dual 5.25" Acrylic Reservoir - Clear - Dual D5 / MCP655 (15167)
Brand: Alphacool  

Alphacool‘s high-class solution for integration of single or dual VPP and TPP pumps into a cooling loop. Pump top and reservoir in one component offer many advantages: Easy mounting, compact dimensions and appealing looks! All this is combined and perfected in the new Alphacool Repack. But Alphacool would not be Alphacool if these new products would not feature inn...


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$108.00

Alphacool Repack Dual 5.25" Acrylic Reservoir V2 - Clear - For Single D5 / MCP655 (15171) Alphacool Repack Dual 5.25" Acrylic Reservoir V2 - Clear - For Single D5 / MCP655 (15171)
Brand: Alphacool  

Alphacool‘s high-class solution for integration of single VPP and TPP pumps into a cooling loop. Pump top and reservoir in one component offer many advantages: Easy mounting, compact dimensions and appealing looks! All this is combined and perfected in the new Alphacool Repack. But Alphacool would not be Alphacool if these new products would not feature innovations...


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$79.99

Alphacool Repack Single 5.25" Acetal Reservoir - Special Edition White Alphacool Repack Single 5.25" Acetal Reservoir - Special Edition White
Brand: Alphacool  

The Alphacool reservoir in proven design now presents itself in a whole new light! Manufactured from white Delrin the lighting effect of the LEDs in the Repack is multiplied and now allows even more exceptional effects. This reservoir was specially designed for PC watercooling applications. It features easy installation and handling as well as an exceptionally bea...


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$39.99

Alphacool Repack Single 5.25" Acrylic Reservoir - Clear - Version 2 (15039) Alphacool Repack Single 5.25" Acrylic Reservoir - Clear - Version 2 (15039)
Brand: Alphacool  

The second version of the Alphacool Repack Single Bayres 5,25" is now available! Based on the development of the Alphacool Repack Dual 5.25 Bay Station, this Bay reservoir also brings its advantages to the table: Easy mounting, compact dimensions and appealing design! All of these features and many more are implemented in the Alphacool Repack Single Bayres. Desi...


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$36.99

Aquacomputer Aquabox Professional 5.25" Bay Reservoir - Black Delrin Aquacomputer Aquabox Professional 5.25" Bay Reservoir - Black Delrin
Brand: Aquacomputer  

The professional aquabox has been improved over earlier versions! New features include G1 / 4 thread, two additional threads on the top of the aquabox and a sunken into the windshield stainless steel trim with countersunk screws. The Aquabox is machined from Delrin, a professional-solid material and is extremely durable.


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$49.99

Aquacomputer Aquabox Professional 5.25" Bay Reservoir - White Delrin Aquacomputer Aquabox Professional 5.25" Bay Reservoir - White Delrin
Brand: Aquacomputer  

The professional aquabox has been improved over earlier versions! New features include G1 / 4 thread, two additional threads on the top of the aquabox and a sunken into the windshield stainless steel trim with countersunk screws. The Aquabox is machined from Delrin, a professional-solid material and is extremely durable.


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$49.99

AquaComputer Aqualis ECO Scratch Resistance Reservoir (34037) AquaComputer Aqualis ECO Scratch Resistance Reservoir (34037)
Brand: Aquacomputer  

All reservoirs of the aqualis series are equipped with a borosilicate glass tube. In contrast to acrylic glass, which is often used for tube reservoirs, borosilicate glass is extremele hard and scratch-resistant, features superb thermal and chemical resistance and a very low thermal expansion. The glass tube has an outer diameter of 75 mm and a wall thickness of 5 mm....


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$64.99

AquaComputer Aqualis ECO Scratch Resistance Reservoir - Nano Coated (34038) AquaComputer Aqualis ECO Scratch Resistance Reservoir - Nano Coated (34038)
Brand: Aquacomputer  

All reservoirs of the aqualis series are equipped with a borosilicate glass tube. In contrast to acrylic glass, which is often used for tube reservoirs, borosilicate glass is extremele hard and scratch-resistant, features superb thermal and chemical resistance and a very low thermal expansion. The glass tube has an outer diameter of 75 mm and a wall thickness of 5 mm....


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$79.99

AquaComputer Aqualis PRO Scratch Resistance Reservoir w/ LED holder (34039) AquaComputer Aqualis PRO Scratch Resistance Reservoir w/ LED holder (34039)
Brand: Aquacomputer  

All reservoirs of the aqualis series are equipped with a borosilicate glass tube. In contrast to acrylic glass, which is often used for tube reservoirs, borosilicate glass is extremele hard and scratch-resistant, features superb thermal and chemical resistance and a very low thermal expansion. The glass tube has an outer diameter of 75 mm and a wall thickness of 5 mm....


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$82.99

AquaComputer Aqualis PRO Scratch Resistance Reservoir w/ LED holder - Nano Coated (34040) AquaComputer Aqualis PRO Scratch Resistance Reservoir w/ LED holder - Nano Coated (34040)
Brand: Aquacomputer  

All reservoirs of the aqualis series are equipped with a borosilicate glass tube. In contrast to acrylic glass, which is often used for tube reservoirs, borosilicate glass is extremele hard and scratch-resistant, features superb thermal and chemical resistance and a very low thermal expansion. The glass tube has an outer diameter of 75 mm and a wall thickness of 5 mm....


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$94.99

AquaComputer Aqualis PRO Scratch Resistance Reservoir w/ LED holder - Nano Coated - 880mL (34071) AquaComputer Aqualis PRO Scratch Resistance Reservoir w/ LED holder - Nano Coated - 880mL (34071)
Brand: Aquacomputer  

All reservoirs of the aqualis series are equipped with a borosilicate glass tube. In contrast to acrylic glass, which is often used for tube reservoirs, borosilicate glass is extremele hard and scratch-resistant, features superb thermal and chemical resistance and a very low thermal expansion. The glass tube has an outer diameter of 75 mm and a wall thickness of 5 mm....


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$129.99

 
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