In 2014, Pro-Flex was acquired by the ownership of Sioux Chief Manufacturing. Based in Hillsboro, Indiana, Pro-Flex offers a cost-effective CSST gas system using stainless steel gas tubing for natural gas piping and propane. It provides a flexible, labor-saving choice compared to black steel pipe. Traditional steel installs need many fittings and cutting and threading, which take time and effort. The fitting system and flexible design of natural gas piping with CSST reduce these steps. As a result, labor savings can reach up to 75%.

Pro-Flex has been offering its cost-effective CSST gas system, fittings, and accessories to the plumbing, heating, natural gas piping, propane, and HVAC markets for more than 20 years. It is a trusted name for safe gas piping solutions and is often preferred over options like polyethylene gas pipe in many applications.

The Pro-Flex® Advantage

LEAK-FREE CONNECTION… FIRST TIME, EVERY TIME

The Pro-Flex® fitting system is one of the best choices on the market. It is simple, affordable, and helps stop leaks. That’s why many rely on it for natural gas piping jobs. It also works well with CSST gas piping for HVAC professionals and those in commercial settings using industrial gas fittings.

Installation as Easy as 1, 2, 3…

1. Strip and remove plastic coating in the fourth valley and slide on nut.

2. Place Retainer and Slide Ring in the fourth valley. Place o-ring in third valley. Ensure gasket is in fitting.

3. Hand tighten nut followed by
additional 3/4 to a Full Turn with
a pair of adjustable wrenches.