SMC (6460090) 646 Series Brass Check Valve ; 3/8" FNPT x 3/8" MNPT Self-Piercing Feed Valves Check and clean the mesh

Check and clean the mesh screen every 3-6 months depending on source water quality

This housing accepts standard 21-inch commercial RO membranes with 3/4-inch outer diameter end stub connections

no modifications required

NSF-compliant Quality Control 100% factory tested before shipment Extraction Testing Lot-basis testing ensures no contaminants leach into water Filter Type Inline specialty filter for carbon adsorption Thread Standard NPT (National Pipe Thread) 1/4 inch female both ends

SMC (6460090) 646 Series Brass Check Valve ; 3/8" FNPT x 3/8" MNPT Self-Piercing Feed Valves Check and clean the meshSMC 646 Series Brass Check Valve 3 8" FNPT x 3 8" MNPT Prevents backflow in residential and commercial water treatment systems with reliable spring loaded brass construction Model 6460090 3 8" NPT Connections Lead Free Brass WHY IT WORKS One Way Flow Protection Spring Loaded Mechanism Internal spring ensures positive closure and prevents reverse flow even under variable pressure conditions Brass Body Construction Lead free brass housing resists