Flat SealFlat Seal, 4 in, Fits Duct Size: 4 in, 3-3/4 in L, Round, Galvanized, 26 gaDescriptionECCO Manufacturing™ Flat Seal, 4 in, Fits Duct Size: 4 in, 3-3/4 in Length, Galvanized, 26 ga Gauge, Round Shape
ECCO Manufacturing, Flat Seal, 504004, 4in, Fits Duct Size: 4in, Round
