Watts® "QT" Reverse Osmosis System with Quick Twist Cartridges

Model #: WQT4RO11-50MT

Watts® new "QT" 4-stage residential reverse osmosis system with 50 gallons per day capacity. Systems come with "quick twist" cartridges for easy replacement, including sediment, carbon block, thin film membrane, GAC post filter and metal bladder tank. Systems are "booster pump ready", so a booster pump may be easily added for low pressure installations.

Features & Benefits:

Quick Change Cartridges

Sanitary Cartridges are as easy to change as a light bulb.

  • No trips to the store for bottled water
  • Flow shuts off when cartridges are removed
  • High quality water for only pennies a gallon
  • All installation accessories included
  • Easy cartridge replacement!
  • No sumps!
  • No fuss!
  • No mess!
  • Assembled in U.S.A.


Electronic Sensor

Booster pump retro kits come with an electronic sensor, which “knows” what position the automatic shut-off valve is in, allowing the pump to operate when greater pressure is needed.


What impurities will my reverse osmosis system remove or reduce to safe levels? This reverse osmosis system can be connected to an icemaker. To view the optional icemaker connection... click here. An optional supply line connection is available. Click here to view. View a chart comparing specs of all Reverse Osmosis systems sold on this site
WQT4RO11-50MT

Model #: WQT4RO11-50MT
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Download Specifications (PDF)

Download Service Manual (PDF)


Price Each: $249.00
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Standard Faucet That Comes With All Under Sink Filters Optional Upgrade Luxury Faucets for All Under Sink Filters
Standard Faucet
(comes with system;
click to enlarge)
Upgrade Faucet
click to view
all styles and colors

Water Bottle Landfill Click here to learn why filtration is better for the environment than bottled water.


Quick-Connect FittingsTubing connection has never been easier than with Quick-Connect fittings. Click here to view simplified connection diagrams...


Made in the United States
Made in the United States

Accessories and Replacements

WQTSC-10 Watts® Quick Twist Sediment Filter $12.00
Add to Cart
WQTCBC-10 Watts® Quick Twist Carbon Block Pre-Filter $21.00
Add to Cart
WQTCM50-10 Watts® Quick Twist RO Membrane, 50 GPD $79.00
Add to Cart
WQTCGAC-10 Watts® Quick Twist Granular Activated Carbon Post-Filter $14.00
Add to Cart
WQTBPRK110 Watts® Booster Pump Retro Kit, 110v $125.00
Add to Cart