Smart Water Shut Off Valve Automatic Shut Off Valve Quick Connect 1/4 Product specification Product material: POM material, hard texture, good anti-aging. DGZZI 1/4 Inch RO System without Power Automatic Water Shut off Valve Four Sided Valve Suitable for Reverse Osmosis Water System : : Tools & Home ImprovementAbout this item Product material: POM material, hard texture, good anti-aging. Product working principle: purify water faucet closed, automatic section cut off the RO membrane shell into the water. Four-sided valve takeover Note: Please make sure the size of the product in the picture and the specification of the product in the description before purchasing to make sure you get what you need, thank you! Four-sided valve takeover: raw water from the IN port into the OUT port into the RO membrane shell, the membrane shell of pure water outlet connected to the IN port above the mouth, OUT above the mouth connected to the purification of water faucet. One Way Check Valve DGZZI 6PCS 1/4 inch (6mm) Hose Barb Non Return Product working principle: purify water faucet closed, automatic section cut off the RO membrane shell into the water. Suitable for most reverse osmosis water systems. Material:Pure copper coil + flame retardant materialInstallation pitch:25mmx25mmDC 24V 1/4" Quick connect Solenoid valve. 1/4 outer diameter tubing for most reverse osmosis systems. Quickly and easily connect and disconnect without any additional tools. Made of food grade POM material, healthy and safe.Used to provide you with the most RO water, thereby reducing wastewater generation. Can be used in hot and cold water systems