BECKETT TUNE-UP KIT–BOILER TUNE-UP KIT–nozzle, filter, pump screen
We can substitute a nozzle (up to 1.50GPH) or substitute a 2A or FB-4 filter instead of the 1A size. We can substitute a #110 screen for a ‘B’ pump instead . If the model number on the cap of the fuel pump begins with the letter ‘A’ this is the correct pump screen #109.