Shop for quality portable tote tanks by Barker manufacturing and Thetford. For those RV campgrounds that require a portable tote tank, we carry 2-wheel and 4-wheel tanks. Up to 42 gallons of storage. Equipped with 3″ waste valves, matching the connection on your RV. Various models come with 4 pneumatic wheels and heavy duty tow handle for added convenience. Most tote tank kits include sewer hose, clamps, and necessary attachments. Great prices, free shipping on orders over $99*.