Kozyvacu 4.5CFM Single-Stage Rotary Vane Vacuum Pump (4.5CFM, 150 Miron, 1/3HP, 1/4"Flare 1/2"Acme Inlet) for HVAC/Auto AC Refrigerant Recharging, Wine Degassing, Milking, Medical, Food Processing etc

* Lightweight cast aluminum construction for maximum durability * Direct drive motor allowing easy starting and is maintenance free * Oil viewing windows allows you to monitor oil quality and levels;Oil Drain Valve - Positioned at the bottom of the oil reservoir and angled for faster, more complete draining; * Oil Fill Port - Makes adding oil simple since the port is accessible from the front or either side; * Built-in high volume cooling fan for extended use and overheat self recovery fuse is built in for thermal protection.