[Package] Includes 3pcs non-return inline valve part numbered LV1219. maintains pump prime and prevents drain back. Check the quantity after receiving.
[Function] Works as a one-way gate for water flow. It opens to allow water to move forward to your appliance, then closes to prevent any backflow or draining, keeping the line full.
[Material] Made from well-tested plastic, harder than the old material, not easy to break or bend, reduce replacing times.
[Usage] Use with both 3/4 inch and 1 inch diameter pipes. ideal for a wide range of water systems. Simply installation, just insert the valve in the correct flow direction.
[Service] Contact us if there's any quality problems, we'll get back to you and make replacement as soon as possible.