The TOTO Drake Two-Piece Round 1.6 GPF Toilet offers a high-profile design and is powerful and durable enough to work within both residential and commercial applications. The Drake bowl and tank set includes a tank to bowl gasket, tank to bowl hardware, and toilet bolt caps. The Drake utilizes TOTO�s G-Max flushing system which features a 3" wide flush valve, extra-large siphon jet, and a large trapway. This reliable combination generates a powerful cleansing flush with 1.6 gallons of water. This version of the Drake comes with a left-hand chrome trip lever. Additional items needed for installation and use must be purchased separately: wax ring, toilet mounting bolts, water supply lines, and toilet seat.