Top Brand Check Valve, 1/2 in, Single, Inline Piston, Brass, FNPT x FNPT - CHK BRS 815-8F8F-F Capacity-16 oz Seamless polyethylene construction with open

Seamless polyethylene construction with open view sump

500 Liners per Box

Features 10" dia

For Use With Grainger Item Number: 2KLF4

Metal is also rust-resistant and won't crack in cold weather

Top Brand Check Valve, 1/2 in, Single, Inline Piston, Brass, FNPT x FNPT - CHK BRS 815-8F8F-F Capacity-16 oz Seamless polyethylene construction with openIdeal for installation in tight spaces, this piston spring check valve can provide backflow protection for a variety of applications. Model has an embedded O ring that seals on the seat. Pressure in the direction of flow moves the piston and seal off the seat and exposes the cross holes in the piston. Valve is designed to provide a positive seal at very low back pressure or slight vacuum.