Tanks are made of polyethylene that is in compliance with FDA regulations and meets Coast Guard standards. Each tank has two 1-1/2" openings and one 1/2" vent. Waste tanks feature a heavier wall thickness for strength, and a 3" inspection port on larger capacity tanks.
TAPERED ON ONE SIDE. TOP MEASURES 21.5" WIDE X 32" LONG, BOTTOM MEASURES 19.75" WIDE X 32" LONG.
