Optimize the performance of your freeze dryer using Harvest Right Vacuum Pump Oil. Chemically engineered to maintain viscosity at higher running temperatures, this premium oil maximizes vacuum-pump life with minimal moisture content, superior separation from water, and excellent cold-temperature properties for easier starting. Harvest Right Vacuum Pump Oil has very low toxicity, a crystal-clear appearance, and less than .5% aromatic levels. Recommended for use in Harvest Right oil pumps. Maximizes vacuum-pump life Maintains viscosity at higher running temperatures Minimal moisture content Excellent cold-temperature properties for easier starting