The grey pipe is polybutyle (PB) and is marketed as Qest. It is not
particularly resistant to chlorine and I've heard there is/was a class
action lawsuit against the manufacturer. If you like, you can stick to the
original fittings here.
https://mobilehomedepotmi.com/plumbing/qest.html
Josh Muc
I'm not sure about the product you have but I have had extremely good
experience with this line of products. I very much like the way the they
tighten and firmly held. Easy to remove and reinstall too.
https://www.flairit.com/flair-it.php
Josh Muckley
S/V Sea Hawk
1989 C&C 37+
Solomons, MD
On
Believe this fitting is designed for quick connect ½ inch tubing. Very similar
to what I used when I redid entire boat with PEX tubing. Try these guys
https://www.freshwatersystems.com
I used the Watts Aqualock products
John Read
Legacy III
1982 C&C 34
Noank, CT
From: Tom Bus
