rynkh 0 Report post Posted June 11, 2010 I have an under sink water filter. The inlet to the water filter is a 3/8 inch flexible tubing. The outlet is to a supplied thin faucet mounted above the table top. How do I connect the filter inlet to the main water pipe. I know I need an adapter or something --- what do you call it and where can I get it ? What does it look like . Can anyone post a pic ? Share this post Link to post Share on other sites