I have 2 faucets at my kitchen sink: one for regular water stuff and the 2nd for drinking water. Lines running from the drinking water faucet are 3/8" female compression.
My ecopure inline water filter has 1/4" male compression (un-removable), at both ends. I refuse to use any other inline water filter as I have tried several and only this 5 year ecopure removes all the odors/tastes. ecopure changed the connections a few years ago.
I've figured out how to run from the kitchen sink cold water supply/shut-off valve (3/8" x 3/8" x 1/4" tee & 1/4" line), but cannot find a 1/4" female compression to 3/8" male compression adapter. I can attach a 1/4" female compression line but will then need a 1/4" male compression to 3/8" male compression. Any help is appreciated as I have been searching for a month now.
Best Answer
Since it seems that you already have the lines, I think all you need is a compression adapter fitting like this:
http://www.amazon.com/LASCO-17-6759-4-Inch-Compression-Adapter/dp/B008E5CFC4/
It will screw onto the female 3/8" compression on the drinking water faucet and allow you to connect a 1/4" compression line to it (from the filter).
This is one of the most commonly sold compression adapter at Home Depot, so anyone in plumbing should be able to point you to it (if you're in the US... I'm sure Lowes and others sell it to. Quite common.