1/4" Single "T" long wearing flexible vinyl PVC bottom seal. Conforms to uneven floors Seals against wind, rain, debris, pests, and insects Will not split, crack or shatter under load and remains flexible to -30(°) F. Reduces the moisture level of the garage interior and energy loss year round. 18 foot length - This 3 3/8" wide Garage Door Bottom Weather Stripping with 1/4" T-shaped ends fits standard bottom retainers. It is a long wearing flexible PVC seal that is easily installed. This weatherstrip has the single T-shaped ends that slide into your metal retainer to form a U shape when installed. Please look at the pictures to compare it to yours. Select the width of your door above. All weatherstrip comes with an additional 2-3 inches in length. Determine what you need based on what is currently on your door. Weather strip varies within door models, so there is not one specific type that works with each model. Remove a portion of your existing seal from the bottom of your door to see the size and shape of the ends going into the track. Compatible with commercial and residential sectional garage doors up to 2" thick using a 3-3/8" wide, 1/4" T-shaped channel weather seal. Some compatible brands include: Amarr, Clopay, CHI, Midland, North Central, Garaga, Overhead Door, Ideal, Raynor, Martin, Ankmar, Genie, and some Wayne Dalton models (8500, TS150, TS200, 5155, 5150, 5255, 5200, 2411, 2415, 216, 220). Please examine your door for compatibility prior to purchasing.