Purulator is what was written on the box, you are very lucky was having a clean out, and found the old box, so wrote the make and model down, as the box went in the bin, I was told they was used on BMW's from the guy I bought it from.
At least with a part number he should be able to get an equalivent. It should not matter too much as long as its a EFI pump that's designed to have the filter after the pump.
I know it the law to add vat, if your vat registered, but you can back calc the vat from the selling price. then charge this price plus the vat, so the buyer still only pays the price the auction finished at.