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Due to a shortage of staff, phone-in customer service is currently unavailable. Please email mat@completeplumbingsource.com and we will respond within 24 hours. PLEASE NOTE: Due to extreme supply chain issues, we can't guarantee delivery dates on Ground shipments. You will be contacted if an Air shipment can't deliver on time. div>

Backflow Valves

Backflow Valves
Complete Plumbing Source’s Backflow Valves are designed to prevent the backflow of heating system fluid and contaminated water from drinking water. They have a dual check design with a vent and are made from brass.
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  1. Caleffi 573503A 3/4" NPT Female Dual Check Backflow Preventer w/ Atmospheric Vent
    Caleffi 573503A 3/4" NPT Female Dual Check Backflow Preventer w/ Atmospheric Vent
    $58.50
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