Ispring Replacement Parts 50GPD Flow Restrictor 300CC 1/4" Quick Connect For RO Reverse Osmosis... R/o Water Filter System Flow Restrictors live up to their name, they restricts the flow of reject water in water's drain line that leaves the membrane. 1/4 Quick connect Flow Restrictor 300CC for RO Reverse Osmosis 50,GPD RO 50GPD Flow Restrictor 300CC 1/4" Quick Connect for RO Reverse Osmosis (pack of 2) · Brand NameATWFS · OriginMainland China · TypeWater Filter Parts It's ideal for Reverse Osmosis membranes ranging from 36 to 50 GPD, with the option to use it with 75 GPD membranes, albeit with a varying waste ratio... Tier1-PFR402Q-150 150 mL Inline RO Membrane Flow Restrictor... This replacement inline flow restrictor can be be used when replacing your membrane with a higher or lower flow capacity.
