2 way UV stabilised ANSI 150 Flanged PVC true union ball valve. Comes with PTFE (Teflon) seats and our unique double stem seal system (standard in EPDM but also available in Viton). ). Also features a chem lock insert In the end so the true union can be removed for service work and the ball will not leak when in the closed position. Great PVC ball valve for corrosive or chemical media where traditional material such as brass and stainless steel are not suitable.