Frost King 2-Piece 7 ft. and 1-Piece 3 ft. Bronze Replacement Kerf Door Seal WeatherstripReplacement Foam Kerf for Millwork doors. Door Seal features soft cell foam enclosed by a tear resistant cover. The replacement seal conforms to irregularities in door fit and finish for a tight seal. The door seal will replace the seal in doors with standard 1 8 in. x 11 32 in. kerfs Superior resistance to low temperature compression Fill gaps up to 11 16 in. An eliminator seal unconditionally guaranteed never to fail Seals uneven gaps around the