This float valve assembly controls water intake on your Polar Cool evaporative cooling fan, closing off flow as the float rises to keep the water level correct. It's a direct replacement part for 18", 24", 36", and 48" fans — not the Pro or Zone lines.
Polar Cool built this float valve assembly as a genuine replacement component for its evaporative cooling fan lineup, not a universal aftermarket substitute. Getting the float level right matters more than most owners expect — set it too high and you get overflow around the cabinet base; set it too low and the pads run dry, which shortens pad life and cuts cooling efficiency. 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 18", 24", 36" (including 36" Single Speed), and 48" evaporative cooling fans.
- Connects to water supply fitting SKU 1021-3000.
- Float is field-adjustable to set desired water level.
- Does NOT fit PolarCool Pro model fans — use SKU 6422-6016 instead.
- Does NOT fit PolarCool Zone model fans.
A float valve that's set too tight or too loose is the #1 cause of nuisance overflow calls on evaporative units — the friction point is usually an over-torqued or misaligned float arm at install, not a defective valve. Adjust the float slowly and check the water line after a full fill-and-drain cycle before closing the cabinet back up; this prevents chronic overflow that stains stucco or siding and wastes water over a season. Use a small adjustable wrench on the float arm rather than pliers to avoid distorting the linkage. Follow OEM torque and adjustment guidance from Polar Cool's install literature — over-tightening the arm is the most common cause of premature valve failure in the field.
Key Benefits
- Genuine Polar Cool replacement component, matched to OEM fitment.
- Complete assembly — no separate parts to source for a full replacement.
- Adjustable float for dialing in the correct water level after install.
- Direct connection to the standard water supply fitting (SKU 1021-3000).
- Built for regular-duty use across four common fan sizes.
| Spec | Value | Unit |
|---|---|---|
| Part Type | Float Valve Assembly | — |
| Primary SKU | 6450-6067 | — |
| Compatible Fan Sizes | 18, 24, 36, 48 | inch |
| Compatible Variant | 36" Single Speed | — |
| Connection Fitting SKU | 1021-3000 | — |
| Pro Model Alternative SKU | 6422-6016 | — |
| Price | 49.00 | USD |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
- Fits: PolarCool 18", 24", 36", 36" Single Speed, and 48" evaporative cooling fans.
- Does NOT fit: PolarCool Pro model fans (requires SKU 6422-6016).
- Does NOT fit: PolarCool Zone model fans.
- Requires water supply fitting SKU 1021-3000 for connection.
Compliance & Environment
| Item | Note |
|---|---|
| Power Safety | Disconnect power to the cooler before replacing this part. |
| Water System | Adjust float after installation to prevent overflow or dry-pad operation. |
Options & SKUs
| Variant | SKU | Price |
|---|---|---|
| Default Title | 6450-6067 | $49.00 |
FAQ
Will this float valve fit my 36" PolarCool fan?
Yes, SKU 6450-6067 fits 18", 24", 36" (including 36" Single Speed), and 48" PolarCool fans. It does not fit Pro or Zone models.
Does this float valve work with PolarCool Pro models?
No. Pro model fans use a different float valve assembly, SKU 6422-6016. This part is for standard 18", 24", 36", and 48" models only.
What does this float valve connect to?
It connects to the water supply fitting, SKU 1021-3000, to maintain a steady water feed to the cooling system.
Is this a complete replacement kit?
Yes. The assembly includes everything needed to replace the existing float valve, and the float is adjustable to set the correct water level after installation.
Can I install this myself?
Most owners can replace this part without a technician. Disconnect power first, swap the assembly, connect it to the water supply fitting, adjust the float, then restore power and check operation.
Warranty & Registration
Manufacturer warranty terms for this part were not included in the supplied data. [NEEDS VERIFICATION] Refer to the "Resources (System Manuals and Warranty)" Tab above for the current manufacturer warranty terms on this component.
