Fleetguard Filter FS19761

I received the following email today from a vegcar.net reader.

I've used your guide to changing filters for a year now, Thank you! I have a question. I am trying to figure out what number the filter is from Fleetguard so I can purchase them in greater number.

I was happy to hear that he has been using our step-by-step filter change guide to change the filter in his Davco 234 heat exchanger. The filter that goes in the Davco is a Fleetguard FS19761 filter (2 microns). I just bought a case of 6 from the Kenworth Dealer in Fresno, CA for $92 including tax.