Better yet.....why not make it an internal filter....build it into the case...cover it with a blank gasketed cover then even if the filter bowl separates for any reason the oil is trapped "inside" the Gear Box.
Sikorsky uses internal oil passages rather than using external piping to get the oil around the case as it is.
The key is to keep the oil "inside" the gear box as much as possible and limit the sources of "external" leaks as much as possible.