Granzon 30mm Radiator-Pump Combo for Build-Your-Own AIO Systems — Available in 120 mm fan size in four lengths (GZMN)
In this gallery — tap to open full size
GZMN120N
Only 5 left in Boise, ID
$245.99USDFree shipping, lower 48
Ships the same business day on orders placed before 2:00 PM MST. Overnight delivery available at checkout.
ship now, on pre-order.We hold 5 in Boise; the balance follows around 31 business days from now. Tell us at checkout if you'd rather it all shipped together.
What this works with
Check these against your build before you order. If anything here does not match what you have, ask us first — it is cheaper than a return.
PC cases that support 120mm, 240mm, 360mm, 480mm radiators (1-4x120mm) and have clearance for integrated pump housing
Liquid cooling components using G1/4" threads (CPU/GPU blocks, reservoirs, fittings)
12V fans (1-4 x 120mm fans required; fans not included)
PWM fan headers for pump control (check motherboard or fan controller support)
Claims are settled here, by the people who sold it to you.
Custom watercooling since 2002
PrimoChill, from Boise, Idaho.
About this part
This Granzon Radiator-Pump Combo for Build-Your-Own AIO Systems (GZMN) integrates a high-capacity radiators with a compact PWM-controlled pump for streamlined custom AIO setups. Designed to be mounted like a standard radiator, it delivers strong thermal performance for high-core CPUs and GPUs while simplifying loop assembly. The combo minimizes tubing runs, reduces fittings count, and improves case compatibility for clean, efficient builds.
A high-flow design supports robust coolant circulation through dense fin stacks and large-format fans. The unit can be installed in series with additional radiators or blocks.
In the box
Radiator with Integrated PWM Pump (GZMN)
Mounting Screws for radiator/fans
G1/4" Port Plugs
Note: Tubing, fittings, reservoir, coolant, and fans are not included
This product comes in three pieces and requires assembly.
If the gallery shows a parts diagram, that diagram is the source of truth for what ships.
This is a component, not an assembly — how it goes in depends on the loop it is joining. What does not change is the last step: leak test before power. Run the pump on a bench supply with the rest of the system unpowered. 24 hours is the standard, an hour is the minimum.
Custom water cooling is installed by you, at your own risk. We are not responsible for leaks, or for damage to your parts or system. If you're unsure at any step, ask before you power the loop.
Questions people ask about this part
Answers specific to GZMN120N. 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?
This part is specified by what it connects to, not by a card model:
PC cases that support 120mm, 240mm, 360mm, 480mm radiators (1-4x120mm) and have clearance for integrated pump housing
Liquid cooling components using G1/4" threads (CPU/GPU blocks, reservoirs, fittings)
12V fans (1-4 x 120mm fans required; fans not included)
PWM fan headers for pump control (check motherboard or fan controller support)
Check those against your build before you order. If anything does not match, ask us first — it is cheaper than a return. Part number GZMN120N.
Is it in stock, and when will it ship?
Yes — only 5 left in Boise, Idaho. Orders placed before 2:00 PM MST on a business day ship the same day — we do not ship weekends or US holidays. Overnight delivery is available at checkout.
Can I return it if it turns out not to fit?
Yes. 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. So we would rather check the fit with you first: send us the model and we will check it against this part.
Who handles the warranty?
PrimoChill covers this part for 1 year. Every warranty claim is handled directly by our support team, so you deal with us from start to finish.
Is shipping free?
Yes — shipping is included at this price for addresses in the lower 48 US states.
Are printed instructions included?
No printed manual is included. Installation references are in the product gallery images, and the install guides on this site cover the process step by step.
Do I need anything else to use it?
Check the parts list above against what you already have. If you are building a loop from scratch, send us the full parts list and we will tell you what is missing before you order.
Ask us before you order
Send your exact hardware model and we'll confirm the right part before you spend $245.99 — 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.
