7100107 - Four Stage Kwik-Change Reverse Osmosis System with Flow Rate up to 60 Gallons Per DayFour Stage Kwik Change Reverse Osmosis System with Flow Rate up to 60 Gallons Per Day This four stage Kwik Change reverse osmosis is equipped with a unique swivel valve in head, Kwik Change assembly. This allows for a simple and sanitary filter change that does not require you to turn off the water source to the system. Stage 1 is a five micron sediment filter that traps particulate matter like dirt, rust, sand silt and sediment. Stage 2 is a five