This is the replacement drain cap for the Polar Cool Zone 11K evaporative cooler (36" gray rotomolded plastic model). It seals the drain opening so water stays where it belongs and the cooler drains properly during service.
This drain cap is a genuine Polar Cool replacement part built for the Zone 11K's drainage system. The large grooves on the cap give you a solid grip, so you're not fighting a slick or stuck-on cap every time you need to service the unit. 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 Zone 11K evaporative cooler — 36" gray rotomolded plastic model only.
- Type: Plastic drain cap with grooved grip design.
- Function: Seals the drain opening to ensure proper drainage and prevent clogs/leaks.
- NOT compatible with Polar Cool models that use metal housings.
Key Benefits
- Genuine Polar Cool replacement component built for the Zone 11K drainage system.
- Grooved design gives you a better grip for removal and installation.
- Durable plastic construction holds up to regular maintenance cycles.
- Straightforward installation — no special tools required beyond basic hand tools.
- Helps prevent clogs and keeps drainage running efficiently.
| Spec | Value | Unit |
|---|---|---|
| Type | Plastic Drain Cap | - |
| Material | Plastic | - |
| Compatible Model | Zone 11K (36" gray rotomolded plastic) | - |
| Price | 13.00 | USD |
| Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications. | ||
Compatibility & Fitment
- Compatible with: Zone 11K evaporative cooler, 36" gray rotomolded plastic model, only.
- NOT compatible with: Polar Cool models featuring metal housings.
Compliance & Environment
| Item | Detail |
|---|---|
| Power Safety | Disconnect power to the cooler before removing or installing the drain cap. |
| Material Safety | Durable plastic construction; no metal-housing compatibility. |
FAQ
Will this drain cap fit my Zone 11K cooler?
It fits the Zone 11K 36" gray rotomolded plastic model only. It is not designed for Polar Cool models with metal housings.
What material is the drain cap made from?
It is made from durable plastic with a grooved, grippy design for easier handling during removal and installation.
Does this drain cap work with metal-housing Polar Cool coolers?
No. This drain cap is not compatible with Polar Cool models that use metal housings. It is built specifically for the 36" gray rotomolded plastic Zone 11K model.
Do I need to shut off power before replacing the drain cap?
Yes. Disconnect power to the cooler before removing the old drain cap or installing the new one.
Warranty & Registration
Manufacturer warranty terms for this component were not included in the source data provided. [NEEDS VERIFICATION] Refer to the "Resources (System Manuals and Warranty)" Tab above on this page for manufacturer warranty documentation. Ask us before you order if you need this confirmed — we always reply back.
