The Watts 50 GPD Quick-Change Four-Stage Reverse Osmosis System is designed for those who desire easy installation, operation and maintenance. The system’s compact design takes up relatively little space under your sink, and it’s very easy to change the filter cartridges. 

Quick-Change (QC) Proprietary Cartridge Systems are certified by WQA and use a 50 GPD thin film membrane. Proprietary disposable, encapsulated filter cartridges have swing-out feature for easy filter change out, and automatic shut off when cartridges are removed. There's no need to disconnect tubing when replacing membranes. 

Permeate pump uses no electricity; provides more water in storage tank, better contaminant reduction, and faster tank filling; and reduces waste water by 400%. System is booster pump or ZeroWaste® kit ready. Quick-Connect fittings on inlet and outlet ports, and inlet water fitting is adaptable to use with 3/8 compression or 1/2 compression fittings. Valves are built into the heads to prevent backflow for water quality assurance. WQA Certified to NSF/ANSI Standard 58.


    • Automatic shut off when cartridges are removed 
   • Disposable 11" proprietary encapsulated filter & membrane cartridges
   • Cartridges have double O-rings to prevent leaks 
   • No need to disconnect tubing when replacing cartridges    
     • Quick-Connect fittings on inlet and outlet ports
   • Integrated check valves between cartridges and membrane prevent back-flow
   • Metal or plastic water storage tank options available
    • Installation kit is included


NOTE: This system qualifies for free shipping within the contiguous 48 United States.


See other reverse osmosis systems here.