a removable and reusable multiple application fitting is disclosed that enables removal of the hose without significant damage to the hose . the removable and reusable multiple application fitting properly seals with hoses made of only one compound , such as rubber , as well as hoses of multiple compounds with or without linings , such as a rubber hose with a plastic lining . the multiple application fitting has a taper step and o - ring step to guide a hose over an installed o - ring to prevent the o - ring from being displaced during installation . the multiple application fitting is versatile and in some embodiments is used with hoses that require o - rings , and in other embodiments used with hoses that do not .