- Valves - Check Valves

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Check Valves help you stop unwanted reverse flow with an automatic bubble-tight seal.

CKS Check valves with automatic bubble seal

CKM Diaphragm Non-return check valves

The patented diaphragm in the Plast-O-Matic True Blue Check Valve is designed to re-seat with a bubble tight seal regardless of mounting position or reverse flow.

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