PrimoChill's Praxis Wetbench Powdercoated Steel Modular Open Air Computer Test Bench for Watercooling or Air Cooled Components
Why builders choose the Wetbench
The Praxis Wetbench is the original PrimoChill test bench: a slanted, open steel frame with acrylic accents, made for water-cooled builds you want to see and reach. Choose a black or white frame and one of 13 accent colors.
The board leans toward you, so the build is easy to see, photograph and work on.
A black or white frame with 13 accent colors. Accent kits are sold on their own, so the look can change later.
Radiators from 120 to 360 mm or 140 to 280 mm, inside or outside the frame.
Nothing between you and the hardware, so swapping a card or a block takes minutes.
mITX to eATX, an ATX power supply up to 300 mm, four drives and two 5.25" bays for a bay reservoir.
Two 22 mm momentary vandal switches with cables, ready for power and reset.
The bench that started it
A slanted board, open on every side, in powder-coated steel with acrylic accents in the color you choose.
- Slanted posture: the board leans toward you, so the build is easy to see, photograph and work on.
- Your colors: a black or white frame with 13 accent colors. Accent kits are sold on their own, so you can change the look later.
- Radiators: 120 to 360 mm or 140 to 280 mm, inside or outside the frame. Thick radiators mount outside.
- Fits a full build: mITX to eATX, an ATX power supply up to 300 mm, four drives and two 5.25" bays for a bay reservoir.
- Switches included: two 22 mm momentary vandal switches with cables.
Real builds
The original Wetbench in a full custom loop. Tap any photo to see it full size.
Change your accents
Accent kits swap the color of your bench in minutes.
Want a flat bench too?
The WetbenchSX is the next generation: more compact and more modular, with angled and flat legs and room for up to four radiators.
Installing your Wetbench
- Accents to the legsAttach the acrylic accent pieces to the left and right legs.
- Legs to the drive trayAttach one leg at a time with the M3x10 socket caps, split washers and thumb nuts.
- Power supply and bay mountsFit the PSU and 5.25" mounts to the tray with the nylon M4x8 screws.
- Board trayAdd the acrylic accent and the motherboard standoffs to the motherboard tray.
- Finish the benchConnect the motherboard tray and the radiator tray to the bench with the M4x6 low-head screws.
The bench ships with all assembly hardware, a 2.5 mm hex key and the installation guide.
- Test bench frame
- Acrylic accent kit
- Assembly hardware with 2.5 mm hex key
- 2x 22 mm momentary vandal switches, black
- 4x 2-pin switch cables
- Installation guide
Read the full care and warranty details
ASUS boards with an M.2 slot near a standoff. On the ASUS Rampage V Extreme and some ASUS TUF boards, a standoff can block the M.2 slot. Add washers to the motherboard standoff screws, or use two M3 screws instead (extra hardware not included).
Plan the standoffs. Fit the standoffs to match your board's layout before the board goes on.
PrimoChill is not responsible for any hardware damage. Use at your own risk.
What buyers said
Left by people who bought this part here. Compatibility reports are the useful ones — if you fitted it, say which board.
Questions people ask about this bench
Answers specific to MWB-W/UR. If yours isn't here, ask — we'd rather talk you out of the wrong part than sell you one.
What does this part fit?
Is it in stock, and when will it ship?
Can I return it if it turns out not to fit?
Who handles the warranty?
Is shipping free?
Are printed instructions included?
Do I need anything else to use it?
Ask us before you order
Send your exact hardware model and we'll confirm the right part before you spend $204.99 — or tell you honestly that this isn't the one.
Returns are accepted within 30 days and are easy to start in the support center. Unopened items can be returned for store credit with no restocking fee; other returns carry a restocking fee, higher for items that have been installed or used.