thanks – yes:
the filtration system is added by piping filter suction and return to any type gearbox (in this case Amarillo, but also many Marley and some other brands)
typical particle counts before: ISO 24/22/20, sometimes milky due to water to now 16/14/11 with no water. previous oil change intervals 6-12 months, now no oil changes, only top-off.
gear box life extension: at least double (no oil related failures are known since adding the filters)