The Model 40930W-AD is a water sensing and particulate removing filter with 30 micron cellulose media which is recommended for heavier distillates such as diesel fuel and fuel oils. The 40930W-AD utilizes a standard 1.5 -16 UNF mounting thread 1 inch flow required for today's high flow fuel dispensers. The 40930W-AD is a water sensing and particulate removing spin-on filters designed for use on high flow dispensers. It utilizes an epoxy coated interior shell to eliminate oxidation which can cause pin-hole leaks from the inside. PetroClear filters are not to be used with aviation fuels. The 40910W-AD are compatible for use with gasoline, alcohol blended gasoline with 15% maximum alcohol, and diesel fuels. Phase separation will not be detected should it occur.