Double Nut Multi-Point Tank-to-Bowl Mounting System for Easy Tool-Free Installation; Ergoheight™ Elongated Bowl for Added Comfort and Ease of Seating onto the Bowl; Large 2" Fully Glazed Trapway for Clog-Free Waste Removal; Large Water Surface to Thoroughly Rinse Bowl with Each Flush; WaterSense® Certified; ADA Compliant; Lifetime Limited Warranty 14-5/8" W x 16-7/8" H, 12" Rough-In, 1.28 GPF, White, Vitreous China, Floor Mount, Elongated, Toilet Bowl