KINYOOO RO Water Systems Connector, OD Quick 1/4" quick connector, Push In to Connect Water Tube Fitting Set Pack of 20(Y+T+I+L Type Combo + Ball Valve)

CESFONJER RO Water Systems Connector, OD Quick 1/4" quick connector, Push In to Connect Water Tube Fitting Set Pack of 20(Y+T+I+L Type Combo + Ball Valve)

HM Digital DM-1 In-Line Dual TDS Monitor, 0-9990 ppm Range, 2% Readout Accuracy

GREDIA 1/4" inch Quick Connect Water Purifiers Tube Fittings RO Reverse Osmosis System(Ball Valve+L+T Type)+ Water Float Ball Valve + PVC Pipe Hose Cutter + 5 Meters/16 Feet Tubing Pipe (White)