Oatey 33942 Standard Clamp, 50 in Polybag, 1-Inch,Oatey,33942" /> Clamp design allows pipe to be flush mounted to walls and joists This products adds a great value This product is manufactured in China Designed to eliminate notching and wrapping of pipe when running water lines through framing Reduces water line noise and vibration No corrosion  made of durable, low-density polypropylene (gray color) Can be used on hydronic systems