See-through Dome for 777 Fuel Filters
The top dome for the 777 fuel filter water separator is now see-through. Many filters in service still have a black polymer dome. Upgrade to a see-through dome version (p/n RK23008):
When the fuel level reaches the top of the cartridge element (p/n 6732), it indicates increased clogging or restriction across the filtration media and that means it is a good time to service. The clear dome can help users keep an eye on their filter element life.