SMC (6940090) 694 Series PVC NSF Check Valve ; 1/4"FNPT x 1/4"FNPT Buna Waterstone (1100-ORB) Annapolis Black Oil Rubbed Bronze Faucet ⚗️ Multi-Contaminant Testing

⚗️ Multi-Contaminant Testing

pipe compatibility Mounting Thread 2-1/2" - 8 NPSM (fits standard softener tanks) Electrical Requirements 110V 60Hz

it reduces TDS readings to near zero ppm for applications requiring ultra-pure water

Appliance Lifespan

Coconut shell carbon offers superior micropore structure compared to coal-based alternatives

SMC (6940090) 694 Series PVC NSF Check Valve ; 1/4"FNPT x 1/4"FNPT Buna Waterstone (1100-ORB) Annapolis Black Oil Rubbed Bronze Faucet ⚗️ Multi-Contaminant TestingThe SMC 6940090 is a 1 4" FNPT threaded PVC check valve from the 694 Series, NSF certified with a Buna N seal for reliable one way flow protection in residential and commercial water systems. This compact valve prevents backflow and protects pumps, filters, and RO membranes from reverse pressure damage. SPECIFICATIONS SMC 694 Series Check Valve Technical Details Model Number SMC 6940090 Series 694 Series Connection Type 1 4" FNPT x 1 4" FNPT Body