Screws onto standard carpet cleaning 2.5" ID non-crushable vacuum hose and will slip over 2.5" OD pipe. Use on vacuum hose that is 2-1/2" ID and about 3" OD. Buy more, save more discount pricing. Color or shade of vinyl is not guaranteed. compare to current or past OEM associations: 1674-2316 AH220 121734 225105968076 3100800 121734 03100800 37441607 03100796 37441656