SeaLand OdorSafe Plus marine sanitation hose provides the best odor barrier in marine sanitary hoses - up to 500% more effective against odor permeation than competitive hoses. It's ultra-smooth interior also prevents clogging. Key benefits:* 1.5" (38mm) ID* Best odor protection of any marine sanitation hose* Five-year limited warranty* Standard hose on all SeaLand tanks with pre-plumbed components* Sold by the foot; maximum continuous length is 50'