Vacuum Pump Oil Filter

The perfect companion to your freeze dryer. Reduce the hassle, mess and cost of maintaining your pump oil. If you have been searching for an easier more effective way to filter your pump oil, this is it.

Our filter uses 4 separate stages and types of media to ensure the oil is free of debris and ready to re-use time and time again.

The filters can be replaced as needed without difficulty or fuss.

These units can be attached directly to the drain of some pumps using common NPT fittings. A fitting set for a 1/8NPT Horizontal outlet is available here:

These units can be attached directly to the drain of the pump, or used offline with our VP Accessory Pack available here:

Durable construction using all metal parts (excluding filters and O-rings)

The housing, end caps, and internal spacers are Aluminum.

Fittings and drain valve are brass.

The valve may differ from the one pictured based on availability, but it will be a 1/4 MxF ball valve.


39 in stock


When used in line attached to the pump drain valve, oil can be filtered directly from the pump into a container placed under the filter valve. A vent tube aids in a smooth flow through the filter while being long enough to prevent oil from overflowing the unit.

Filtration for 500ml of oil is accomplished in around 1 – 1/2 to 2 – 1/2  hours depending on the temperature and condition of the filters. This can usually be completed during the defrosting cycle of the freeze dryer.

The oil will pass through a stainless steel screen, cotton filter, paper filter, and a carbon filter to ensure impurities and particulates are removed before the oil is used again. The screen can be rinsed out and reused indefinitely. The internal filter media can be used multiple times before replacement is needed. The number of cycles is dependent on a number of factors including, temperature, moisture, and contamination in the oil. it is reasonable to expect 10 or more uses before the filter media needs to be changed. The filter will continue to process the oil more slowly as the media becomes dirty. The filters will need to be changed when you determine it is taking longer than will fit your needs.

Filter Weight (without fluid) = 18Oz.

Overall Length including vent tube and valve = 12-1/2″

HIT is not affiliated with Harvest Right.

Additional information

Weight 1.5 lbs
Dimensions 8 × 2 × 3 in


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