Stenner UCAK400 Injection Fitting with 3/8" Nut, Low pressure pumps, 25 psi

Stenner low pressure injection fitting with 3/8" connecting nut. Fit's low pressure pumps less than 25 PSI

Does not have check valve. 

If you need the injection check valve w/ 3/8" Connection nut for pumps rated to 100 PSI See part number UCINJ38