Allenair is a reliable source for air cylinders, hydraulic cylinders, valves and pumps. Their cylinders come in standard sizes and can be used in place of other manufacturer’s cylinders. Everything has been designed to solve corrosion and environmental problems by manufacturing them in 300-series stainless steel. Allenair valves come in 4-way ¼”, 3/8” and ½” NPT valves, 2-way, 3-way solenoid 1/8” and ¼” NPT valves, 4-way direct-acting 1/8” NPT valves, Time-A-Valve, switches and 1/8” NPT Poppet valves. The Allenair linear piston pumps, drum pumps and transfer pumps are extremely durable by combining brass, stainless steel and other various materials to make an excellent product. All their products are repairable and serviceable by using universal packing kits which makes them a market leader for over 50 years.