UniFilter "Filter Fix" filter oil is a heavyweight mineral oil mixed with non-drying glue agents.  This mix of oil is very important for good filtration - as it must be liquid enough to travel and meet the dust as it builds up on the surface of the foam and thick enough not to drain from the foam.

The formulation of "Filter Fix" has taken many years to perfect.  Since 1978 there have been several improvements, on each occasion some two years of field testing were undertaken prior to acceptance of that formula - the present formula is simply the best on the market.

The best method to clean your Snorkel Pre Cleaner after a trip is to use mineral turps, or else you can use a form of degreaser. Allow to dry first and then reapply the UniFilter "Filter Fix" filter oil.