Norwesco 2500 gallon water tanks OUT Local Delivery Only Resale Lumber Products sells Norwesco 2500 gallon NSF (Food Grade) water tanks with full warranties against manufacturer defects. 102″ W x 81″ H 1 1/2″ In – 2″ Out Norwesco water tanks are manufactured using resins that meet FDA specifications to ensure safe storage of potable water. The black or dark green color limits light penetration which reduces the growth of water-borne algae. We have other tanks from 100 gallons to 5,000 gallons. Need tie down straps? We have them too!