This sleek countertop unit has a digital flowmeter and the exclusive Great Water® flow control. The flowmeter allows you to to accurately measure how much water has been used and alerts at filter change time. The exclusive Great Water® flow control matches the water flow from your faucet to the lead and other contaminant removal capacity of the filter.

Countertop Filter Installation - Single Stage User's Manual

Countertop Filter Installation - Two Stage User's Manual

The Easy-Fit faucet adapter has the size designation of 55/64"-27 Female, and will replace many aerators which have the threads on the inside (Female) of the removed aerator. There is also an adapter (shown to the left) included which converts the Great Water® fitting to fit into the same opening as a 15/16"-27 Male aerator. This combination will fit virtually all aerators of US  faucet manufacturers. If your faucet does meet these requirements, you will need to visit a plumbing supply store. We suggest taking your aerator and the Great Water® fitting and let your friendly sales associate give you the right adapter.

To change the digital meter from liter mode to gallon mode or vice versa is very easy :

1. Remove batteries. (Do not remove batteries until the LCD turns off and no numbers are visible on the screen.)
2. Depress and hold "RESET" button while you re-install batteries.
3. Release the "RESET" but when you hear a single long "beep" sound. Then you can see the liter mode has been changed to gallon or liter mode on LCD.
4. Do not remove batteries again until the LCD turns off.