PPRC Trinity 9-mm Dental Teeth 25x20 methak - 25 mm diameter PPRC PPRC PPRC is a connection of 20 mm wooden gear components, a switching fittift. This product is used to combine a solid and leaking connection to the crane in water supply and heating systems, manometry, valves and other gear links. Polypropylene Random Copolymer (PPRC) is highly resisting both mechanical power and heating changes, thanks to the body of the body and streaming metal. This trio of fitting of the metak brand creates a long-lived and secure system by being easily mounted by the welding fitting.