This a Bauer K15 scuba compressor on a Mako frame. This unit is a 4 stage 5000 PSI machine, output is 16 CFM (cubic feet per minute) and features fully automatic condensate drain. Provides Grade E breathing air. 3 phase electric motor. Less than 500 hours since rebuild and autodrain fully serviced recently. Currently in use at our dive store (scubadiversions.com). We bought a bigger machine and no longer need this one. Custom stand included. Great deal if you want to pump your own scuba cylinders or looking to to replace existing compressor. Free local pickup or freight can be arranged. We expect our new machine to arrive next week. Call 407-332-1222