<p>B & F 21032 EMS Oxygen regulator 0-25 lpm 1 check valve, hose barb outlet and gauge.<br /> SPECIFICATIONS<br /> Supply Pressure: 500 to 2200 psi<br /> Outlet Pressure: High flow outlets: 40 to 60 psi at 500 to 2200 psi inlet pressure<br /> Flow Capacity: High flow outlets: 100 lpm minimum single or combined flow with 500 psi inlet pressure<br /> Constant flow outlet selections:<br /> 0-25 lpm: 0, 1, 2, 4, 6, 8, 10, 12, 15, 18, 20, 25<br /> Filter: 50 micron sintered bronze<br /> Safety Relief Pressure: 75 to 140 psi<br /> Operating Temperature: 32°F to 100°F<br /> Storage Temperature: -20°F to 120°F<br /> Materials: Body: Nickel-plated brass<br /> Knob: ABS polymer<br /> Outlets: Nickel-plated brass<br /> Internal Parts: Brass, stainless steel, Viton® , silicon, and Teflon®</p>