Product Overview
Every water and holding tank is manufactured from polyethylene that complies with FDA regulation CFR 177.1520 and meets Coast Guard standards. Holding tanks have a heavier wall thickness than water tanks. All openings are female National Pipe Threads (NPT) The openings are all standard sizes and easily adapt to any boat. Each holding tank (shown) has two 1 1/2" openings and one 1/2" vent. All openings are located in the same relative position on one end of the tank. Fittings are not included in the price of the tanks.