Alita AL250 E3 Linear Air PumpSolid construction, low noise and long lasting.Aluminum alloys housings.Oil-less operation.250+/- 5% LPM, 8.8 CFM +/- 5%, 2.9 psig = 6/7 ft w.c.SpecificationModelAL-250WAL-300AL-400AL-500Voltage & Frequency120VAC 60Hz, 230VAC 50HzRated Pressure20 kPa, 2.9 psigRated Performance (5%) (lpm, cfm)250, 8.8300, 10.6400, 14.1500, 17.7Rated Power (W)200300370480Discharge Fittings3/4″ FPT, 26 mm / 1 in O.D.Dimension LxWxH420 mm x 248 mm x 262 mm16.5 in x 9.8 in x 10.3 inWeight (kg, lb)19, 4225, 4925, 4925, 49