... fitting, brass pipe fitting,pex pipe fitting,pvc pipe fitting,ppr fitting ,copper fitting,screw fitting,thread fitting are designed ... ring(AISI 304) it will be, irreversibly joined the tube with the fitting.Our fittings are manufactured with brass of first ... the facilities where you use the system . Both o-ring seal, they assure a perfect watertightness in the hydraulic or heating installations. ppr ...