Flat SealFlat Seal, 20 in, Fits Duct Size: 19-7/8 in, 3-3/4 in L, Round, Galvanized, 24 gaDescriptionECCO Manufacturing™ Flat Seal, 20 in, Fits Duct Size: 19-7/8 in, 3-3/4 in Length, Galvanized, 24 ga Gauge, Round Shape
ECCO Manufacturing, Flat Seal, 504020, 20in, Fits Duct Size: 19-7/8in
