Fram bypass filter for several tractors. Fits Baldwin OB1305 head, replacement for Baldwin B50. Caught them on sale at the local Farm and Home for 1.00 each, so one got sacrificed. Simply nothing special here. Thin can, standard media, simple button in output for restriction, leaf spring at top of can holds media cartridge to baseplate. Not even a gasket between the cartridge and baseplate. Just another reason for me to explore a better bypass than my pieced together homebrew kit, IMO.