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Hydronamic Automatic Shut Off Valve with 1/4" John Guest Fittings - White (ASV-100-JG)
This device is designed to save water that your RO system would otherwise send to the drain when the storage tank fills up. Normally RO systems continue sending rinse water to the drain when the tank is full, but the ASV-100-JG stops this by shutting off incoming water at a certain pressure. Outfitted with 1/4" John Guest fittings.