Backflow Preventers

Backflow Preventers

  • Reduced Pressure Zone (RPZ) Assemblies (spec sheet)

  • Vacuum Breakers (spec sheet)

  • Brass Dual Check Valves (spec sheet)

  • Flo Check

  • Double Check Valves (spec sheet)

  • Test Cocks

  • Sweat & Copper Swing Check Valves

  • IPS Spring Check Valves

  • PVC & Rubber No-Hub Sump Check Valve

  • NH Back Water Valve (2 - 4 inch)

  • PVC Back Water Check (4 & 6 inch)

Extendable Backwater Valve Kit - Stocking 4 & 6 inch


Clean Check® extendable backwater valves prevent sewage backup into a residence or building as a result of a plugged sewer system, excess volume in the system or groundwater flooding.

They are designed to be installed easily outside a home, business or other structure, without using a costly manhole, and are readily accessible for maintenance or cleaning.

The extendable valves consist of a tee-shaped valve body, a top collar and a bottom collar with a replaceable PVC flapper attached. In the event of back-pressure, the flapper blocks the reverse flow and prevents a sewage backup

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