Fabricated mechanical joint coupling available to meet the American Iron and Steel (EPA – AIS) domestic materials/construction requirements. This coupling can be manufactured to fit the requirements of the application, the pipe diameters and elevated pressure ratings. Fabricated of Carbon Steel (optional Stainless Steel), the JCM 250 MJ Coupling is the solution to the domestic coupling need. Sizes 4” and 24”. Larger sizes available upon request.