Hydronamic (CV18S-MxF) Check Valve - 1-8" MNPT x 1-8" FNPT Filters for 20 inch Standard Housings It requires an existing Q-Series

It requires an existing Q-Series filter head with 1/4" quick-connect or 1/4"/3/8" NPT female threads

The OMB934 fits all standard 10-inch filter housings with 2

Verify waste-to-product ratio is within specification

5" specialty cartridge with 3 lb KDF-85 and coconut shell carbon for well water treatment

🔀 Dual-Mode Operation

Hydronamic (CV18S-MxF) Check Valve - 1-8" MNPT x 1-8" FNPT Filters for 20 inch Standard Housings It requires an existing Q-SeriesThe Hydronamic CV18S MxF Check Valve prevents backflow in your water filtration system with precision engineered 303 stainless steel construction and 1. 0 psi cracking pressure. Built for reliable one way flow control, this 1 8" MNPT x 1 8" FNPT valve handles up to 0. 84 gpm at 20 psi. SPECIFICATIONS Hydronamic CV18S MxF Technical Details Model Number CV18S MxF Connection Size 1 8" MNPT x 1 8" FNPT Material 303 Stainless Steel Cracking Pressure 1. 0