Robinair 13204 Premium High Vacuum Pump Oil - 1 Gallon

Works great for my harvest right freeze drier pump

I freeze dry food for long term storage. My freeze dryer requires a vacuum pump and to maintain that pump I have to change the oil (specific for vacuum pumps) and this is a very good brand. It helps reduce moisture collection, needs changing less often than other brands I have tried. My only complaint is that it has almost doubled in price. I use to get a case of quart sized, but saved money buying it in a gallon jug. Although I saved money, it is much harder to pour into my pump. I have compensated for this frustration by transferring the oil into quart bottles I have saved for oil changes. I am getting ready to order another gallon, this is the only brand I trust.

Great oil that is rated equivalent to Harvest Right vacuum pump oil. I purchase this oil specifically to be sure to stay under warranty on my freeze dryer (these things cost thousands, so need to be meticulous in maintenance). Good price and delivered to my door! Much better price than if purchased the Harvest Right branded oil.

A name you can trust quality product

It’s oil and I think it works? It became very cloudy after 1 run in my freeze dryer pump but I think it has to do with the pump not the oil.

Exactly the same oil as that sold under the name Harvest Right. Perfect for my HR Freeze Drier.

My HR Small Pro manual said I could use this oil, without voiding my warranty. This much less expensive than the HR branded oil when purchased by the gallon. I've been using this oil for 2 months now, and cannot tell any difference between it and the HR labeled oil that came with my machine. I've run it through the pitcher-type filter every 5 cycles, and don't seem to be losing much over time. The same 2 liters of oil have served me through about 40 cycles now without issue, but the quality of the pump has as much to do with longevity as the quality of oil or other maintenance concerns.

Oil is great for ac machines