This is the Fleetguard fuel filter for the HD (formerly 150) series system. It is rated at 10 microns.
Cross References;
Baldwin BT-372-10 10 Micron
Cim-Tec 70032 10 Micron
Donaldson P569383 9 Micron
Fleetguard FF5588 10 Micron
Fleetguard HF6338 10 Micron
Napa 1202 5 Micron
Napa 1724 10 Micron
Wix 51116 11 Micron
Wix 51202 5 Micron
Wix 51724 10 Micron