Double Nut Multi-Point Tank-to-Bowl Mounting System for Easy Tool-Free Installation; Large 2" Fully Glazed Trapway for Clog-Free Waste Removal; Large Dual FED Siphon Jets Increases the Speed of the Flush for a Quick and Clean Bowl Everytime; ADA Compliant; WaterSense® Certified; Lifetime Limited Warranty 15-1/2" H, 12" Rough-In, 1.28/1.6 GPF, White, Vitreous China, Floor Mount, Round Front, Toilet Bowl