This is a relatively easy hack on Scepter 5 Gallon Water Containers.
This will provide you with a O.D. Male Garden Hose Thread Connector. It will also provide a I.D. Female NPT Connection. This will allow all kinds of DIY connections or accessories.
This was originally adapted so a short piece of garden hose could be attached to the 5 gallon Scepter Container. To aid in transferring water into the gravity water fill on an RV/Camping Trailer, when boondocking.
The internal Female 1/2″ NPT is useful for screwing in a threaded brass valve. The Container can be left on its side on a picnic table the valve opened like a spigot to wash hands, or fill other containers.