Features: * U-shaped door bottom with drip cap * Used in conjunction with saddle thresholds * Seals between bottom of door and threshold to block out air and moisture * Slotted fastener holes allow easy installation and adjustment * Fits 1-3/4 inch doors * 3/8 inch height x 1-3/4 inch width x 36 inch length What"s In The Box: * Thermwell U37H 1-3/4-In. X 36-In. Drip Cap Door Bottom