We recomend using Watts Radiant Tubing in your next radiant floor heating or plumbing project. When it comes to PEX tubing they all perform the same. Every manufacturer creates their tubing to the same ASTM PEX standards, which they all exceed by 2 to 3 times. The only difference is the Warranty, and the company backing the warranty.
Watts Radiant backs their tubing with a 25 year Replacement warranty. The longest best warranty in the industry. - They will pay to have the product replaced if it fails.
You will also qualify for the warranty if you are not a licensed contractor. - Some manufactures require a training course to obtain a warranty.
It is also backed by one of the biggest names in the industry.