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Water Safety & Flow Control



Lead-Free Check Valves



1 1/4 x 1 in. to 1 1/4 x 1 1/4 in. (32 x 25mm to 32 x 32mm)


Series MFCV-SS Lead-Free Check Valves are used for service on well systems. They feature a stainless steel, lead-free body with NPT male x female threaded end connections. Series MFCV-SS is compact, vibration-free, and provides low opening pressure and low pressure drop. Maximum Pressure: 450psi (31 bar).

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Disclaimer: Watts product dimensions in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.

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Additional Information

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Every year, thousands of people suffer serious thermal shock or scalding injuries in their bathtubs, sinks and showers.

Click here for informative resources to help you protect against these dangers.

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