Zoeller Pumps 30-0021 2" SLIP UNION VALVE

Full 2" flow design meets BOCA pump code. Checks backflow of water and sewer gas. Simple install (no threading of pipe required). Neoprene gasket and flapper weighted with heavy stainless steel metal backing plates and rivets. Can be installed on vertical or horizontal lines. Slips over PVC, steel pipe, or copper piping. Reduces motor and pump noise from plumbing system. Flexible neoprene slip x slip union includes stainless steel clamps for low pressure systems. Max head 10' at 4.3 PSI at 130 degrees. Extra wide hinge to reduce hinge stress. Plasic check has PVC body and can be installed with solvent welded couplings for pressure systems to 25 PSI, 57' max head.