Ideal for professional plumbers, industrial maintenance teams, and HVAC technicians requiring reliabled backflow in commercial or residential pressurized systems Features a 4 inch large diameter threaded connection, spring assisted rapid closure mechanism, and corrosions resistant construction, ensuring smooth flows control in demanding environments Perfect for vertical installation in water supply networks, irrigation setups, and processing plant where space optimization and reverse flows protective are critical Heavy duty vertical check crafted from premium brass with reinforced structure, designed to withstand high pressure systems while backflow and minimizing water hammer for enhanced pipeline Combines brass rubber sealing with vertical orientation flexibility, leakproof across temperature variations while maintaining minimal pressure, Manufacturer: REITINGE