Our Intermediate
Bulk Containers have a 2.5 inch fitting that we needed reduced down
to a typical 3/4 inch hose hookup. The difficulty is guessing what kind
of threading it is.
These rubber connectors snug
up to any threading and are easy to install.
The thread is a 2" NPT. Adapters here (tested and approved!) http://www.globalindustrial.com/p/storage/bins-totes-containers/containers-ibc/2-female-npt-pipe-thread-x-3-4-male-garden-hose-pipe-thread-adapter