PMD Products Garage Door Bottom Threshold Weather Seal 18' Long Heavy Duty EPDM Keep your garage cleaner, drier and quieter. Threshold protects garage doors by keeping them off the ground and out of the water. EPDM synthetic rubber withstands extreme temperatures without cracking Seal Keeps Garages Cleaner, Dryer, Quieter while keeping Rain, Snow, Debris, Pests out of garage Energy saver for homes with attached garages. Fits 18 foot RV garage doors, can be cut to fit 16', 14', 10'or two 9' doors