For Sale: Watts 007 M2 QT - 1-1/2" Double Check Valve Assembly for Backflow Protection. SKU # 0062616. Series 007 to prevent the backflow of contaminated water into the potable water supply. It consists of a bronze 1-1/2 body construction that is easy to maintain and service. Ideal at referenced cross-connections identified as non-health hazard applications. Maximum Working Pressure: 175 psi(12.06 bar). No special tools required for servicing. Retails at $624.56 at Amre. Asking $150.00 If interested, please call 403-935-4362. PLEASE NOTE: This number DOES NOT accept text messages, but if no answer please leave a message and we will get back to you. Willing to meet at mutually convenient time and place.