SMC (6850490) 685 Hastelloy Poly Check Valve 1/2" NPT 20 inch x 4.5 inch Big Blue Filters2700 Yellow Tag 1/4" Male Connection

Yellow Tag 1/4" Male Connection OEM Part

800 GPD Flow Rate 99

Pre-Measured

Built with K MONEL internal components for superior corrosion resistance and a one-piece machined acrylic body for visual clarity

Replace sooner if flow rate decreases or taste changes

SMC (6850490) 685 Hastelloy Poly Check Valve 1/2" NPT 20 inch x 4.5 inch Big Blue Filters2700 Yellow Tag 1/4" Male ConnectionSMC Professional Grade SMC 685 Hastelloy Poly Check Valve 1 2" NPT Polypropylene inline check valve with Viton seals and Hastelloy springs for reliable backflow prevention in demanding water treatment applications Model 6850490 125 PSI WOG Chemical Resistant WHY IT WORKS Built for Corrosive Environments Hastelloy Spring Corrosion resistant Hastelloy spring maintains consistent closing force even in aggressive chemical environments where standard