The Clopay 4.75" Bottom Seal Astragal is a replacement weatherstrip for the bottom edge of select Clopay sectional garage doors. Installed into the door’s existing bottom retainer, it compresses against the floor to help block drafts, water, dust, insects, and light infiltration, improving comfort and reducing energy loss. The wider 4.75-inch profile increases floor contact for better sealing on uneven slabs, making it a practical upgrade for both residential and light commercial applications where enhanced weather protection is needed.
Designed to work with compatible Clopay bottom retainer channels, this astragal typically installs by sliding into the track after removing the old seal, then trimming to length. For best results, allow the seal to relax at room temperature and avoid overstretching during install. Always secure the door, disconnect the opener, and do not adjust torsion or extension spring hardware while performing the replacement. Because retainer profiles vary by door model and era, confirm that your existing bottom retainer matches the seal’s profile before ordering to ensure proper fit and reliable performance.