Does anyone know what size (ID) vent hose is used on 2001 era 2500-SCR holding tank? I want to order a filter and see they're available in 5/8", 3/4", 1", and 1.5". The boat is up in the rack building so I won't have easy access to measure myself until next weekend - would like to get filter on order now.
Holding tank vent filter
Linear Mode
