Malida 1/4 Inch tube Automatic Shut Off Valve Push to Quick Connect Fittings For Reverse Osmosis Water Purifiers Filters (4 Way Shut-Off Valve);

QC fittings Automatic Shut-Off Valve Quick-Connect Fittings RO Reverse Osmosis Automatic Shut-off Valve with Quick Connection. This a replacement part for a standard Reverse Osmosis (RO) System. All tube connections are 1/4" with "in" and "out" labeled on the top. This valve shuts off the feed water going into an RO System when the pressure on the tank side reaches 2/3 that of the feed pressure.