ALITA AL-500W AIR PUMP Alita Industries Sale! from 160000 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. High output capacities. Solid construction, low noise and long lasting. Aluminum alloys housings. Oil-less operation. 500+ LPM, 17.7+ CFM, 2.9 psig - 6.7 ft w.c.