Threshold GasketsSeals between the threshold and door jamb to extend threshold life. Jamb GasketsUsed to seal the jamb to sill and jamb to header seam. Hardware Gaskets & ShimsGaskets around window hardware and shims for fit. Butyl Sealing GasketsDesigned for wood and aluminum window corners and threshold sealing. Balance / Chimney PlugsBlocks air from traveling up the balance chimney. Mull Pads & GasketsSeals over gap created by mulling, or joining, two or more windows.