Featuring internal / external thread connection and thickened wall, the withstands extreme pressure and high temperature environments while enabling tool less installation on standard piping networks Engineered with premium grade brass and a reinforced 6 inch vertical design, this heavy duty check delivers exceptionally resistance and leak proof for industrial grade fluid controls systems Ideal for professional plumbers, HVAC technicians, and DIYer enthusiasts managing water supply lines, processing systems, or residential plumbing upgrades requiring reliabled backflow Perfectly integrates with commercial boilers, water distribution networks, industrial filtration units, and household irrigation setups to maintain unidirectional flows in liquid / applications For ANSI standards, this multipurpose brass check combines durability with engineering, ensuring long service life across marine, agricultural, and construction environments, Manufacturer: LiRRvb