Zoeller 30-0021 Check Valve Union, 2"X2", Full Flow Locking Pliers Installs completely from inside

Installs completely from inside

aluminum steel

varnish and paint from wood

For most exterior uses

Zoeller 30-0021 Check Valve Union, 2"X2", Full Flow Locking Pliers Installs completely from insideHighlights: Prevents back flow of water and sewer gas. Full flow. Extra wide flapper hinge prevents hinge stress. Vertical or horizontal line. Slips over ABS, PVC, steel or copper pipe. Flexible neoprene unions. Includes clamps, unicheck. Rated at 25 PSI pressure (57 ft. of head) 130 deg. F max. Bulk 2" x 2" Plastic Slip x Slip Union. Warning: This product contains chemicals known to cause cancer and birth defects or other reproductive harm