Moving a recreational vehicle for sanitation will be a thing of the past thanks to this Barker 5-Gallon Tote-Along Drain Water Tank. This is a 5-gallon RV accessory that is designed to assist campers in their trash and sanitary needs. The Barker water tank transfers grey and black H2O from holding tanks on their RV into one of our tote tanks. Campers can stay at their site and eliminate the hassle of moving an RV. Simply make sure you have fresh liquid for drinking and cleaning as the impure water is shifted to a holding area. The Barker tank comes in five convenient sizes all the way up to 30 gallons and they provide a capacity for various quantities. All original tote-alongs come completely assembled and feature blow-molded polyethylene construction with quality zinc-plated steel brackets throughout. This ensures durable construction and that your tank won t come apart.