Door Frame Weatherstrip Insert Type Flexible Nylon Brush Insert Material Nylon Brush Insert Color Gray Insert Size 7/16 in Flange Material Anodized Aluminum Flange Finish Aluminum Flange Height 3/4 in Flange Width 3/4 in Flange Thickness 1/16 in Overall Length 4 ft Overall Width 1 1/4 in Stays Flexible to -70 Degrees to 425 Degrees F Projection 9/16 in Mounting Type Surface Max Door Gap 1/8 in Fire Rated 3 hr For Use With 48 in W Doors