Classic Accessories Evaporative Cooler Cover - Heavy Duty Weatherproof Protection, 18" x 18" x 4" - Perfect for Outdoor AC Units, Swamp Coolers & Portable Air Conditioners - Model 1

When those colder months arrive, you want to make sure your home is nice and toasty. Keep drafts from coming through the grill of your evaporative cooler with this helpful heat plug. This heat plug is designed with thick insulation, which not only prevents cold air from getting inside, but also helps to reduce outside noise as well. A durable fabric cover protects the insulation, and the cover can be easily removed for a quick clean. Please remember to remove the heat plug completely before you use your cooler.

Evaporative cooler plug prevents cool air and drafts from entering through the grill and reduces noise

Evaporative cooler heat plug fits 18"L x 18"W x 4"H

Removable fabric cover is easy to clean

The durable, thick interior insulation is made to last

Friction fit means this plug is designed to fully seal off outside air

Installation is easy and simple instructions are included

Not for use when the evaporative cooler is in operation

Durable fabric provides protection from harmful UV rays