The Quick Test Backflow Preventer Fittings (Thermoplastic) are compatible with the 1/4” - 2” Backflow Preventers. Repair Kit components conveniently include three 1/4” plastic Quick Test Fittings and O-Rings. Repair Kits are sold as accessories for quick and simple repair needs, reducing the time it takes to test your Backflow Preventer. The RK14-QTP features 1/4” NPT x 1/4” flare fitting sizes, and features an integral O-Ring and hand-tight installation, eliminating the need for Teflon tape and wrenches to save you valuable time and material costs. Materials include durable Glass Filled Polypropylene Fittings and tear-resistant, Buna Nitrile O-Rings for fault-proof sealing to the test cock.