Gast Linear DBMS800-1250 Linear Aerator (Septic Air Pump) - (Hiblow HP 80 Replacement) Max Flow (60 Hz) 4.2 cfm (118 lpm) - Max Pressure 7.2 psi (.50 bar) - Power 92 Watts (92 Watts) 2 Year Manufacturer Warranty (2X as long as the Hiblow Warranty) Long Life High Efficiency No Lubrication Necessary