CONBRACO PEX - brass insert fitting type a ball valve - ball valve. QUARTER turn with lever handle used to open or close the flow of water in the system. For use with cold expansion PEX a pipe and sleeve system. Compatible with upon or (wirsbo) piping systems ( is a trademark of upon or). ASTM F1960. - type: ball valve, size: 3/4 in., material: brass, PKG quantity: 1, package type: bag.