High Tank Toilets Z-pipe: Our stylish high tank round toilet will lend your lavatory the charm & ambiance of the Victorian age. We've updated the materials and components with 21st century technology. All tanks are All tanks are a water-saving 1.6 gallons per flush. Ready to install with all mounting parts, tank, liner, supply line, angle stop, mounting hardware and grade A vitreous round bowl. Toilet seat not included. Adjustable overall height from 59 in. to 74 in. and 12 inch rough-in. Wooden Toilet Seat Not Included, Sold Separately.