Shop check valves for pressure washing systems at Sun Brite Supply. Check valves prevent backflow in your plumbing, protecting pumps and chemical injection systems from reverse flow and contamination. Available in brass, stainless steel, and plastic construction.

Pressure Washer Check Valves & Backflow Prevention

Install check valves on chemical injection lines, pump inlets, and bypass circuits to ensure one-directional flow. Sun Brite Supply stocks spring-loaded, ball-type, and inline check valves in multiple sizes and pressure ratings for professional pressure washing equipment.