The Frost King AC3H Outside Window Air Conditioner Cover provides superior protection for your cooling investment. Precisely dimensioned at 18" x 27" x 22" with 6mm thickness, this premium grey cover shields your unit from seasonal elements, preventing damage from moisture, debris, and temperature fluctuations. The durable construction resists deterioration while maintaining a discreet appearance on your home's exterior. Extend your air conditioner's operational lifespan and maintain optimal performance with this professional-grade protective solution designed specifically for standard window units.