Door Weatherstripping, Insert Type Bulb, Insert Material Vinyl, Insert Color Gray, Insert Size 3/16 in, Flange Material Aluminum, Flange Color Gray, Flange Finish Mill, Flange Height 5/8 in, Flange Width 5/8 in, Flange Thickness 0.063 in, Overall Length 3 ft, Overall Width 7/8 in, Overall Height 13/16 in, Stays Flexible to 100 Degrees F, Projection 1/4 in, Mounting Type Screw In, Max. Door Gap 5/16 in, Fire Rated 2 hr, For Use With Doors, Includes #6 x 3/4 in Stainless Steel Sheet Metal Screws The NGP weather strip, or vinyl perimeter seal, mounts on top and sides of door frame to help seal any gaps to help keep out drafts and keep energy costs down. Made from thermoplastic polymer-polyvinyl chloride (PVC) formulated with an environmentally-friendly bio-based plasticizer, the hollow bulb v.