HW Brand Round Stock Tank, R32From smallest round and round end tank to 11 ft. round units, all are built with the same heavy duty construction for durability. All feature 1 1 4" BIG TOP rims with sidewalls and bottoms made of 20 gauge galvanized metal fully locked, swaged, corrugated, welded and sealed. Tank features fully seamed Pittsburgh lock bottom. Features: Each tank is completely sealed All sidewalls vertically double welded, swaged and corrugated R32 Stock Tank: 3ft