Plast-O-Matic Series CKS Normally Closed Check Valves 1 1/2″ – 4″
Plast-O-Matic Series CKS Normally Closed Check Valves 1 1/2" - 4".
https://www.watercareproducts.com.sg/check-valves/plast-o-matic-engineering-valves-controls/plast-o-matic-series-cks-normally-closed-check-valves-1.25in-4in