The Model 51130W 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 51130W utilizes a standard 1.5 inch -16 UNF mounting thread 1 inch flow required for most most spin-on filter adaptors used in aftermarket high flow applications. The 51130W is a water sensing and particulate removing spin-on filters designed for aftermarket, cost efficient filtration of fuels at high volume fueling locations such as truck stops, cardlock sites, and industrial and commercial. 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 51130W is compatible for use alcohol blended fuels with 15% alcohol. This filter is for particulate removal only and will not react to water. Phase separation will not be detected should it occur.