A

Backflow preventers namely double check valve assemblies, double check detector assemblies, reduced pressure zone assemblies, reduced pressure detector assemblies, detector check valves, and vacuum breakers; strainers; air gaps; pipeline fittings, namely elbows, spools and flanges; backflow test cocks; backflow test kits consisting of test valves, gauge, hoses, adaptors, securing strap and case, all sold as a unit; and automatic control valves