The open cell window air conditioner weather strip are made from environmental foam material, strip seals out cold air in winter and hot air in summer, widely used in various door seal and window insulation. It can be used from -40℉ to 194℉. This foam strip has excellent resistance to compression deformation, high elasticity and durability. It can quickly return to original shape after compressing. The strong adhesive backing, non-degumming and stick firmly not easily peel off that keep your home more comfortable and energy efficient all year round.