The Model 40510W is a water sensing and particulate removing filter with 10 micron cellulose media which is recommended for gasoline and diesel fuels when a higher cleanliness level is required. The 40510W utilizes a standard 1 -12UNF mounting thread 3/4 flow required for most fuel dispensers. The 40510W is a water sensing and particulate removing spin-on filters designed for use on fuel 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 40510W is not recommended for use with alcohol blended gasoline. Phase separation will not be detected should it occur.