Malida 3/8 "x3/8" Tube Push Union Elbow Quick Connect for RO Water Filter Fitting Pack of 5

Malida 3/8"x3/8" Tube Ball Valve Quick Connect Shut Off for RO Water Reverse Osmosis Set of 2

Malida 3/8" 3-Way Union Tee Tube Quick Connect Push Fit Water Purifiers Filters Reverse Osmosis Sysems (Pack of 3)

TmallTech 3/8" 3-Way Union Tee Tube Quick Connect Push Fit RO Water Reverse Osmosis (Pack of 3)

MALIDA 3/8" Tube to 1/4" Tube push fit straight quick connect for RO water system (Pack of 10)

ATP Value-Tube LDPE Plastic Tubing, Black, 1/4" ID x 3/8" OD, 100 feet Length

Malida 3/8"-1/4" Tee Quick Connect Filtered water fittings ...+ 15 Locking clips Ro Water Filter Pack of 5

Malida 1/4" Tee 3 Way Tube Quick Connect Push Fit RO Water Reverse Osmosis System set of 10

Malida Equal Straight OD Tube Ball Valve Quick Connect Fitting 1/4-Inch by 1/4-Inch OD Valve Start RO Water System Set Of 5

10 Pcs 1/4"x1/4" Push Fit Elbow Tube Quick Connect Ro Water Reverse Osmosis

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