HIBLOW'S new XP series offers a range of Linear Pumps XP40, XP60, XP80. These silent running Linear Diaphragm Pumps are designed for many applications: Oxygen Septic Tanks Air injection Aeration Medical products Product Features Worlds Smallest & Lightest Model Low Noise Low Power Dual Insulation Dust Trap Filter 80l Class of Electric Blower for Waste Water Treatment Dimensions Approx: 8.2"L x 6.75"W x 7.5"H Features: Quiet Operation Low Power Consumption, Vibration, Pulsation, and Starting Current Oil-less Contamination Free Design Long Life Automatic Pressure Limitation Easy to Service Thermal Protection C.E. Compliant and U.L. Listed Models Specifications Max. Cont. Pressure (psig): 3.5 Max. Inter.Pressure (psig): 5.5 Open Flow (c.f.m.): 2 Sound Level (dBA@3 ft.): 32