Clamp & Gasket Set For supply, return and exhaust ductwork

Size 12",   Width 6"

Clamp is made of  Polyethylene with 410 Stainless Steel Plates and 3” SS Screws. When a fitting is installed, the gasket creates a seal against the exterior of the duct. The air duct system exceeds SMACNA’s Leakage Class 3 performance from -20 in. W.G. to +12 in W.G.