Profile: Concoa specializes in gas pressure equipment and flow control apparatus. We provide delivery systems for worldwide medical, industrial & specialty gas applications, and distribution equipment for laser materials processing. Our seat-related components are self contained in a sealed module. Our large micron sintered metal filter is an integral part of a capsule that protects the valve components from any contamination. Our seat material is made from high grade Teflon®. Teflon continuously adjusts to form a tight seal and retains its sealing properties over a wider range of temperatures than many other seat materials. These properties provide a longer useful life even in the most demanding environment.