Here is a set of seven replacement exhaust filters for your Rietschle vacuum pump.  This is the threaded version that fits the VCA-150, VCAH-250, VC-200, etc.  Beacon Medical often uses Rietschle pumps in their medical vacuum systems.  If you were to order this from the manufacturer, you would use part number 731401. 

Filter Body measures roughly 5.5" long x 3.25" wide.  It has an insert to use a allen wrench to tighten the filter.  An o-ring is incuded for a positive seal between the housing and the filter. 

To keep your vacuum pump from running hot, it is recommended that your filters be changed every 6 months to 12 months.   

Check out our other auctions for our the Rietschle pumps.  Contact me with any questions.  Thanks for looking.