... good looking, long service It is double female thread plastic ball valve, available size: 20mm, 25mm, 32mm.“Seher” PP-R ... pressure,.3, Anticorrosion and no fouling: avoid fouling or rust in basin and bathtub.4, Heat preserving and ... of that of metal, it can bear 5MPa or more in compression test, it also has good ... can be normally used in 50 years or longer. double female thread plastic ball valve