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Zurn

350 Double Check Valve Assembly Backflow Preventer

The Zurn 350 Double Check backflow preventer is designed to protect a potable water line from backpressure or backsiphonage. Though flanged OS&Y valves are most common, this valve can be ordered with a variety of inlet and outlet connections and it’s available in 2-1/2″ – 12″ sizes. This backflow preventer is UL/FM approved.

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  • Product Sheet: 350 Backflow Preventer, 3/4″-2″, Zurn
  • Product Sheet: 350 Backflow Preventer, 2-1/2″-12″, Zurn
  • Guide/Manual: 350 Backflow Preventer Installation & Maintenance Instructions, 3/4″-1″, Zurn
  • Guide/Manual: 350 Backflow Preventer Installation & Maintenance Instructions, 1-1/4″-2″, Zurn
  • Guide/Manual: 350 & 450 Backflow Preventer Installation & Maintenance Instructions, 350 2-1/2″-6″, 450 2-1/2″-3″, Zurn
  • Guide/Manual: 350 Backflow Preventer Installation & Maintenance Instructions, 8″-12″, Zurn
  • Other Product Literature: 350XL & 350 Backflow Preventer Parts List, 3/4″-1″, Zurn
  • Other Product Literature: 350XL & 350 Backflow Preventer Parts List, 1-1/4″-2″, Zurn
  • Other Product Literature: 350 & 450 Backflow Preventer Parts List, 2-1/2″-3″, Zurn
  • Other Product Literature: 350A & 350 Backflow Preventer Parts List, 350A 2-1/2″-10″, 350 4″-12″, Zurn
  • Video: 350 Double Check Valve Assembly

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Address: 36 Hudson Rd, Sudbury, MA 01776-2039

Phone: 800.225.4616

Fax: 978.443.7600

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