I'm guessing that the handles you are referring to are the nozzles? If they are threaded for 1 inch hoses, you can pick up a pipe reducer at any hardware, HomeDepot,Lowes store....1"x3/4". Usually in galv. but black iron will work. The swivels were used on a bunch of pumps and they would be good here as well. This is a hobby so just enjoy and do what you like.