Uniweld HVP8 HUMM•VAC vacuum pump removes moisture and dehydrates a system quickly and efficiently. The HVP8 model operates at 8 CFM, has an oil capacity of 31.3 ounces (925 ml), and a micron rating of 15. All HUMM•VAC models include the following: non-slip rubber hand grip, dual voltage power box (110/220), slant back center balanced handle, powerful low decibel fan cooled motor, heat dispersing motor and reservoir fins, sure grip rubber foot pads, low profile easy access oil drain, beveled reservoir pan for complete oil drainage, large sight glass for easy oil monitoring, oil fill port, exhaust dome, and 3 way intake fitting (1/4”, & 3/8”, & 1/2" Male Flare) with tethered caps.