Flat Seal With DamperFlat Seal With Damper, 4 in, Fits Duct Size: 4 in, 6 in L, 26 gaDescriptionECCO Manufacturing™ Flat Seal With Damper, 4 in, Fits Duct Size: 4 in, 6 in Length, 26 ga Gauge
ECCO Manufacturing, Flat Seal, 504034, 4in, Fits Duct Size: 4in, 6in L