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PVC Spring Ture Union Check Valve, 1in Slip Swing Utility Water One Way Check Valve, Sch80 Socket Pool Ball Check Valve for Backflow Prevention. 【PVC Spring Check Valve】PVC union check valves have a stainless steel spring inside, are designed for both vertical (upflow position) and horizontal installations, PVC spring check valves MUST be installed with the valve's flow arrow pointing in the direction of the flow.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.