Ful-Flo fuel oil filter. FB-6 3/8" IPF inlet & outlet spaced 4-1/4" from end to end, 8-1/2" height. Capacity 300 GPH.

Ful-Flo fuel oil filter. FB-8 3/8" IPF inlet & outlet spaced 4-1/4" from end to end, 10-1/2" height. Capacity 400 GPH.

Ful-Flo fuel oil filter. FB-10 3/8" IPF inlet & outlet spaced 4-1/4" from end to end, 12-1/2" height. Capacity 500 GPH.

Replacement cartridge for model FB-4 Ful-Flo fuel oil filter.

Replacement cartridge for model FB-6 Ful-Flo fuel oil filter.

Replacement cartridge for model FB-8 Ful-Flo fuel oil filter.

Replacement cartridge for model FB-10 Ful-Flo fuel oil filter.

Replacement gasket for models FB-4, 6, 8 & 10 Ful-Flo fuel oil filter.