The A&F Corporation stop and nozzles include an integral check valve and a chain to eliminate over-drawing of the nozzle.
The unit is available with a PVC, 304SS or 316SS quill to allow for compatibility with a variety of chemicals.
3/4" MNPT corporation stops with Viton seal.
3/4" MNPT corporation stops with EPDM seal.
PFS injection quills.
Injection valves are used at the discharge side of the pump, at the end of the tubing or pipe run where the chemical is injected into the water flow. They prevent back flow of water and/or chemical.