KRPLUS 50GPD Flow Restrictor 300CC 1/4" Quick Connect for RO Reverse Osmosis (Pack Of 2) Solid Filter Cartridge  (0.1, Pack of 2)

It is recommended that the flow restrictor is replaced each time an RO membrane is replaced in order to keep your system working at optimum performance, as scale build up can occur and clog the capillaries, Flow Resistor will create back pressure on the membrane and allow the membrane to produce more purified Pure,Tasty,Sweet water. Flow Resistor Comes in Various Sizes, , If the Membrane and FR are not changed frequently, Foul Smell may arise from the Water Filter due to Clogging., Best Quality in Water Purifier Accessories, Easy Fitted in all Models RO,, FR is made by food grade plastic only, Enogh strong to pressure membrane waste and smooth to save RO membrane from blockage