Frost King's GR9 - 9 ft. x 3 in Vinyl Garage Door Top and Side Seal is an essential garage door maintenance item. This Dual-Vinyl Garage-Door Weather-Strip Seal features a rigid, vinyl-base section with a flexible, vinyl sweep. This item works similarly to window and door weather stripping for the garage and helps fill gaps and spaces to insulate and weatherize your garage. Garage door seals work much like the classic Frost King Door Sweeps and help to prevent dirt, dust, water, insects and debris from getting in to your garage. Proper insulation around the garage door helps turn that space into a work area in the winter. Easy DIY Home Installation. Great Weatherization item. Saves money. Saves energy. 3 in. x 108 in. Color: White.