WLRK12-QT, Wilkins-Zurn, The RK12-QT Quick Test Backflow Test Fittings are compatible with 2 1/2" - 4" backflow preventers.

The QT BackFlow Prevention Assembly Quick Test Fittings are designed to connect backflow prevention assemblies to a differential pressure test gauge. Includes three 1/2" brass quick test fittings, three 1/4" brass test fittings, and o-rings. Fittings utilize O-rings for sealing to test cock Eliminates the need for Teflon® tape Saves the tester time and material Available in 1/4", 1/2", and 3/4"