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OutdoorBoiler.com

Backflow Preventer ¾” Brass Dual Check Valve

Regular price   $94.98 USD Sale price   $71.23 USD Save $23.75

LIQUIDATION EVENT – Prices Below Cost!

Preparing for New 2026 Arrivals

 

Get ready for our 2026 arrivals with unbeatable deals! We’re clearing out inventory with sale prices below wholesale cost. Don’t miss your chance to grab premium products at rock-bottom prices.

 

Hurry – Sale Ends Thursday, 2/5!

 

Backflow Preventer 3/4" is a required component of the Outdoor Boiler Fill Kit.  Connections are FNPT.

Codes require a backflow preventer when connecting an outdoor boiler (or any external water tank) to your domestic water supply to prevent contaminants from entering (or "Backflowing") your domestic water supply. This prevents non-potable water and possibly harmful chemicals from coming out your shower head or into your pot of pasta!

 


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