SMC (6550090) 1215 Series Brass Check Valve ; 3/4" FNPT x 3/4" FNPT BUNA 16 inch Poly Wound Pressure Vessel Prevents TDS creep in high-performance

Prevents TDS creep in high-performance GE Merlin Direct Flow systems with a dedicated accumulator flush cycle

Flow irregularities show up immediately on the dual scale display

Compatible with all major brands including APEC

✓ Minimal moving parts ✓ Clog and airlock resistant ✓ Front-mounted head ✓ Side-mount stroke adjustment

SMC (6550090) 1215 Series Brass Check Valve ; 3/4" FNPT x 3/4" FNPT BUNA 16 inch Poly Wound Pressure Vessel Prevents TDS creep in high-performanceSMC 6550090 1215 Series Brass Check Valve 3 4" FNPT threaded brass check valve with BUNA seal for reliable backflow prevention in residential and light commercial water systems Brass Construction 3 4" FNPT BUNA Seal WHY IT WORKS Prevents Backflow and Protects Equipment One Way Flow Control Spring loaded mechanism ensures water flows in only one direction, protecting pumps, tanks, and filtration equipment from reverse flow damage Brass Body