This rubber seal keeps water and debris out of the control box on your PolarCool evaporative cooling fan. It fits 18", 24", and 36" powder-coated black or stainless steel models, including the 36" Pro.
A control box seal is a small part, but it does an important job: it stands between your fan's electronics and every splash, drip, or bit of dust that reaches the touchpad area. On evaporative coolers, that moisture exposure is constant, so a worn or missing seal is a common reason for control failures down the line. 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 18", 24", and 36" PolarCool evaporative cooling fans, powder-coated black or stainless steel finish.
- Also compatible with the 36" Pro fan.
- Seal is installed internally, on the inside of the control plate touchpad.
- Material: durable rubber construction.
- Does NOT fit Zone 11K models — use SKU 1028-6013 for that application instead.
Key Benefits
- Genuine PolarCool replacement component, not an aftermarket substitute.
- Durable rubber construction built to hold up under outdoor/wet-side conditions.
- Blocks water and debris from reaching the electronic enclosure.
- Supports reliable, longer-term operation of the control system.
- Straightforward installation suitable for DIY or professional service.
| Spec | Value | Unit |
|---|---|---|
| Part Number | 1028-3500 | - |
| Type | Control Box Seal | - |
| Material | Rubber | - |
| Compatible Sizes | 18, 24, 36 | in |
| Compatible Model Line | 36 Pro | - |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
- Compatible with: 18" fans, 24" fans, 36" fans, and 36" Pro fans — powder-coated black or stainless steel models only.
- NOT compatible with: Zone 11K models. If you have a Zone 11K unit, order SKU 1028-6013 instead.
Compliance & Environment
| Category | Detail |
|---|---|
| Material Safety | Rubber construction, no listed hazardous handling requirements in manufacturer data |
| Electrical Safety | Disconnect power to the unit before removing the control plate or servicing this component |
FAQ
Will this seal fit my 24" PolarCool fan?
Yes. This control box seal (SKU 1028-3500) fits 18", 24", and 36" powder-coated black or stainless steel PolarCool models, including the 36" Pro.
Does this seal work with the Zone 11K model?
No. This part is not compatible with Zone 11K models. Use SKU 1028-6013 for that model instead.
Where does this seal get installed?
It installs on the inside of the control plate touchpad, sealing the electronic enclosure against water and debris intrusion.
What material is the control box seal made from?
It is made from durable rubber designed to hold up under environmental conditions around the control enclosure.
Is this a genuine PolarCool replacement part?
Yes. Part number 1028-3500 is a genuine PolarCool replacement component for the control box seal.
Warranty & Registration
Manufacturer warranty terms for this part were not included in the provided data. [NEEDS VERIFICATION] Please refer to the "Resources (System Manuals and Warranty)" Tab above on this page for the applicable PolarCool warranty and registration details. Ask us before you order if you need help confirming coverage — we always reply back.
