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 1/8" Fully Glazed Trapway for Clog-Free Waste Removal; ADA Compliant; WaterSense® Certified; Lifetime Limited Warranty 14-1/2" W x 17" H, 12" Rough-In, 1.28 GPF, White, Vitreous China, Floor Mount, Elongated, Toilet Bowl