Detailed Product Description 304 Stainless Steel Coupling: Designed for Seawater Treatment System:Size :from 1inch to 10inch, Material is 304SS, Working ... pressure is 1000pis,1200psi.Style 1000PSI/1200PSI (Designed for Seawater Treatment System)Pressure Rating1000psi(70bar) A Style 316/304SS1200psi (83 bar ...