This cleaner does abrasive cleaning or air cleaning with just the turn of a switch. Simply hook your compressor hose to the cleaner, insert the plug in the opposite end, set the switch for abrasive or air cleaning, push the start button, and get ready to return plugs to a like-new condition. ■Abrasive blasting removes carbon build-up on spark plugs ■Abrasive material is supplied ■Flange on each side lets you fasten the cleaner to your workbench Air consumption: 7.7 CFM Air inlet: 1/4'' NPT Pressure rating: 90 PSI Weight: 1.30 lbs.