Non Return Valves

Non-return valves for low pressure water and chemical lines, which let water flow in one direction only. The range includes brass non-return valves from 1/4 to 1 1/4 inch, including York 3/4 and 1 inch valves, backflow preventers, brass 1/2 and 3/4 inch couplings with a non-return valve and an ST35 suction foot filter with a non-return valve.