This is the complete float valve assembly for PolarCool 36" Pro evaporative air coolers — it controls the water fill so your reservoir stops overflowing and refills automatically at the right level.
The PolarCool Pro Replacement Float Valve (6422-6016) is a genuine OEM assembly built to restore automatic water level control on 36" Pro evaporative coolers. It's a straightforward maintenance-inventory item for facilities running these units in warehouse, outdoor, or industrial cooling applications. Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
Critical Fitment & Requirements
- Fits PolarCool 36" Pro evaporative air coolers only.
- Includes float valve, compression fittings, and tubing — complete assembly, no separate parts to source.
- Tubing connects to the water inlet assembly, SKU 6422-6018, which passes through the fan sidewall.
- NOT compatible with the Zone 11K (36" gray rotomolded plastic model).
- NOT compatible with any other PolarCool units besides the 36" Pro — those require SKU 6450-6067 instead.
- Float height is field-adjustable to set desired water level.
Key Benefits
- Genuine PolarCool replacement component, matched to OEM fitment.
- Complete kit — float valve, fittings, and tubing in one part number, reducing downtime versus sourcing pieces separately.
- Automatic shutoff prevents reservoir overflow without operator intervention.
- Adjustable float height lets you tune water level for your specific installation.
- Suited to continuous-duty use in warehouse, outdoor, and industrial cooling applications.
| Spec | Value | Unit |
|---|---|---|
| Part Number | 6422-6016 | SKU |
| Compatible Model | PolarCool 36" Pro | Model |
| Kit Contents | Float valve, compression fittings, tubing | — |
| Related Inlet Assembly | 6422-6018 | SKU |
| Alternate Part (other units, not Zone 11K) | 6450-6067 | SKU |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
- Fits: PolarCool 36" Pro evaporative air coolers.
- Fits: Warehouse cooling, outdoor cooling, industrial, and portable evaporative air cooler setups using the 36" Pro platform with automatic water fill.
- Does NOT fit: Zone 11K (36" gray rotomolded plastic model).
- Does NOT fit: Any other PolarCool unit outside the 36" Pro — use SKU 6450-6067 instead.
- Requires the water inlet assembly (SKU 6422-6018) as the connection point through the fan sidewall.
| Consideration | Detail |
|---|---|
| Leak Prevention | Inspect compression fittings and tubing during installation for leak-free operation. |
| Installation Standard | Follow manufacturer installation guidelines for secure fitment and proper water flow. |
| Model Verification | Confirm your unit is a 36" Pro model before ordering — fitment is not universal across PolarCool coolers. |
FAQ
Does this float valve fit any PolarCool evaporative cooler?
No. This assembly (SKU 6422-6016) is designed exclusively for PolarCool 36" Pro evaporative coolers. It does not fit the Zone 11K (36" gray rotomolded plastic model) or other PolarCool units — those require SKU 6450-6067. Verify your model before ordering.
What's included in the kit?
The kit includes the replacement float valve, compression fittings, and tubing needed to control water flow into the reservoir.
How does the float valve prevent overflow?
As water rises in the reservoir, the float rises with it and closes the valve automatically, stopping water flow before it overflows.
Does this connect directly to the cooler's water line?
The float valve tubing connects to the water inlet assembly (SKU 6422-6018), which passes through the fan sidewall. That inlet assembly is a separate part.
Can I adjust the water level with this valve?
Yes. Float height is adjustable to set the desired water level and prevent overflow, based on your unit's setup.
Warranty & Registration
Warranty terms for this component are not stated in the manufacturer data provided to us. [NEEDS VERIFICATION] Please refer to the "Resources (System Manuals and Warranty)" Tab above on this page for manufacturer warranty terms, or contact us before you order if you need confirmation — we always reply back.
