This fits your .

Ball Valve - Ball valve allows you to turn water off or on with your water filtration system or other devices using 3/8-inch poly tubing. Ball valve is a standard quarter-turn design. - -1/4-inch Female Thread - Fits on reverse osmosis storage tanks and other 1/4-inch male fittings. - -3/8-inch Quick Connect - Connects to 3/8-inch tubing used on some water filtration systems and reverse osmosis system.

3/8-inch Quick Connect x 1/4-inch Female NPT Tank Ball Valve - B0789P9QYJ