https://trendverity.com/john-g....uest-brass-fittings-
John Guest 1/4 Check Valve Manufacturer
Portage Specialty is a trusted John Guest brass fittings manufacturer, delivering precision-engineered solutions for fluid and pneumatic systems. Known for durability, corrosion resistance, and leak-free performance by the experts, our brass fittings meet the highest industry standards across industrial, automotive, and commercial applications or more.