Check the listing for details. Auto Shut Off Valve 1/4" Check Valve Flow Restrictor RO Water Filter System. Color: As Picture, Condition: New. Listed at 7.58 USD. Our Store Features of Auto Shut Off Valve: Automatically shut off drain water into the sewage quietly.Suitable for most of the reverse osmosis water system.Auto Shut Off Valve Quick Connect Fitting for RO Reverse Osmosis Water System 1/4".Save over 1000 gallon water monthly and extend the lift of your membrane.Specification:Material:PlasticColor:White Features for check valve: Inline check valve prevents water from flowing back through the line. It is used on reverse osmosis systems to prevent backflow through the membrane. When the check valve malfunctions, it can allow the tank to empty back through the membrane and down the drain line.This item is 1/4" quick connect to 1/8" male thread elbow check valve Feature of Flow Restrictor: A flow restrictor is design to create back pressure on the membrane and allow the membrane to produce purified water to be delivered to the storage tank. Flow restrictors are sized to match the flow with the size of the membrane. Package Included: Please check the details ------------------ Payment: Accept Paypal only Shipping: 1.Ship to Paypal registered address, buyer please email us to notify any change address. Seller are not responsible for any wrong or undeliverable address. 2.No local pickups. Return: 1.Unless specified, products are normally guaranteed for 30 days upon the date of purchase. 2.Item returned must be labelled with a Return Merchandise Authorization( RMA) Number, whick is notified upon request through Ebay message.Ite return without RMA# will not be accpeted. 3.Replacement or full refund will be made for defective products returned after seller's verification. Others: If you have any questions, please contact us by Ebay message. We have always been doing our best to provide you the best service and reliable products.Please contact us to resolve the issue before leaving any negative feedback or low detail seller rating. Thank You !