Welcome to the forum.
There are various hose and pipe adapters available at Home Depot, Lowes, or any good plumbing supply place. I don't know what size the intex hoses are but there are adapters to go from 1.5" pipe to various hose sizes. The kind you are probably looking for are the dark grey plastic ones, pipe thread on one end and a barbed hose connection on the other.
Hope this helps.