Product Description Not Suitable for Acid, Alkali and Other Corrosive Liquids. Specifications Color: Blue Product: Diaphragm Pump Type: Double Diaphragm Operation Type: Air-operated Model: Qbk-15 Body Material: Cast Iron Inlet Port: 1/2 Inch (12.7 Mm) Outlet Port: 1/2 Inch (12.7 Mm) Air Inlet Size: 1/4 Inch (6.35 Mm) Gas Nozzle: 0.32 Inch (8 Mm) Max Flow Rate: 2 M3/H (12 Gpm) Suction: 0-5 M (0-16.4 Ft) Max Head: 69 M (226.4 Ft) Max Psi: 115 Psi Package Size: 30 X 28 X 20 Cm (11.81 X 11.02 X 7.87 Inch) Gross Weight: 6.5 Kg (14.33 Lbs) Superiority 1. Good Abrasion Resistance and Heat Resistance. 2. Environmentally Sound: Bolted Construction for Leak-free Fluid Handling. 3. Efficiency: Motor Design Delivers Optimum Air Efficiency. 4. Reliability: "Unbalanced" Air.