HYFL0241 is the only identifying number that I can find on this unit. Unable to find any information on that number. Not familiar with it as it came to us in a buyout of heavy truck items including dump truck parts. Appears to be very heavy duty. Improper storage for many years has made this somewhat surface rusty and it seems like moisture has gotten inside some portions of it. Should probably be taken apart and cleaned up or maybe used for parts. Port threads are two sizes. Measurements on the plastic plugs read: 1-1/16″ UNF and 7/8″ UNF. Please see all phots to determine condition.