Power Tech 10 Fuel Filter
Changing the fuel filter on my generator. It has the Fleet Guard FF5226 filter on it, went to NAPA and got a replacement (don't remember the cross number) it wouldn't screw on. Took those back, went to O'Rilley, got their filter, didn't fit. Comparing the filters, the FF5226 inside is convex, the others are concave so the nipple in the filter adaptor doesn't reach the threads in the filter. So, is this limited to the FF5226, or can the nipple be replaced with a longer one, unscrewed a little or 
TIA
Dave W