Moeller 28 Gallon Water-Waste Holding Tank 041229MOELLER MARINE PRODUCTS 28 Gallon Water Waste Holding Tank 041229 Moeller Marine 28 gallon waste tank Dimensions: 23 1 2 in. Length x 20 in. Width x 15 1 2 in. Height Nominal wall thickness of . 30 in. Resin meets FDA spec CFT177 1520 requirements Satisfies all US Coast Guard standards Includes (2) 1 1 2 in. NPT fill drain ports and (1) 1 2 in. NPT vent port Polyethylene tank will not filter taste into water or emit waste odors !! Not Eligible For