To help prevent water and particulates from entering your vacuum pump use 3/8″ vacuum hose.
Fits any Harvest Right Freeze dryer and Premier or Oil free vacuum pump.
To help prevent water and particulates from entering your vacuum pump, the hose insert fits inside your current 3/4″ hose. The insert will work with any year/model of freeze dryer purchased after January 1, 2015. With this upgrade, you only need to change your oil every 4-5 batches, depending on the quality of your oil. Freeze dryers shipped after December 1, 2019 (and all oil-free pump owners) should already have the new hose or hose insert.
The hose insert will fit inside your current 3/4″ hose. To do this, take the hose insert and coat one end (approx. 4”) with vegetable or mineral oil. Then simply insert the oil-coated end into the 3/4″ hose until it is housed completely within the larger hose. Call Tech Support if you have any questions about which one to order, or, if this will work with your freeze dryer: 800-865-5584.
