NA51361 | 1"NPT Inline Check Valve | Caleffi Knurl Size_1/2IN **Reliable Performance:** Automatic air vent

**Reliable Performance:** Automatic air vent ensures consistent air removal

this control module is designed to replace faulty or damaged modules in Rheem-Ruud water heaters

preventing stagnant air and ensuring a comfortable indoor environment

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NA51361 | 1"NPT Inline Check Valve | Caleffi Knurl Size_1/2IN **Reliable Performance:** Automatic air vent**Caleffi 1" NPT Inline Check Valve (NA51361)** The Caleffi NA51361 Inline Check Valve is engineered to prevent backflow in piping systems, safeguarding system components and ensuring proper fluid flow. This NPT threaded valve allows fluid flow in one direction only, employing a spring loaded poppet that opens when pressure exceeds a predetermined value. Crafted from durable brass, this check valve withstands pressures up to 150 psi and temperatures