M-D Building Products 1-1/4 in. x 1-1/4 in. x 42 in. Gray Foam Air Conditioner Weatherstrip

Seal gaps around window air conditioner units with resilient open-cell foam weatherstrip tape. This compressible seal effectively prevents outside air, dust, and insects from entering living spaces, improving overall indoor comfort and energy efficiency. Designed to absorb and cushion operational vibrations, it reduces rattling noises during air conditioner operation. The flexible foam material conforms to irregular surfaces, providing a tight, reliable barrier throughout the cooling season.