SMC (6870090) 687 Series PVC NSF Check Valve ; 3/4"FNPT x 3/4"FNPT Buna Quantity:Pack of 2 Fill the sample cuvette with

Fill the sample cuvette with 10 mL of water sample to be tested and zero the photometer with the blank sample

5" L × 4" W Filtration Media C-249 Softening Resin (FDA Grade) Micron Rating 10 Micron Flow Rate 1

phosphate media for scale and corrosion control in residential and commercial water systems

5" cartridge format

SMC (6870090) 687 Series PVC NSF Check Valve ; 3/4"FNPT x 3/4"FNPT Buna Quantity:Pack of 2 Fill the sample cuvette withSMC 687 Series 3 4" FNPT PVC Check Valve with Buna Seals Glass filled polypropylene construction with low 1 PSI cracking pressure for reliable one way flow control NSF Certified 125 PSI Max 17 GPM Flow Viton Seals The SMC 6870090 check valve prevents backflow in RO systems, booster pump installations, and pressurized water lines where maintaining directional flow is critical. Install downstream from your pump to eliminate water hammer and protect