1.28gpf high efficiency wall hung bowl. Top spud. Siphon jet. 1-1/2" spud for Flushometer valve. Seat not included. Water sense high efficiency toilet. Product Information Product Overview Rough-In: 4 1/4 Vertical Rough-InFlushing Method: Gravity FedBowl Shape: ElongatedFlush Volume: 1.1/1.28/1.6gpfInstallation: Wall HungBrand: Gerber Features 1 1/2 Top Spud for Flushometer ValveAvailable in White OnlyDoes not include Bolt CapsFlushometer not IncludedHigh Efficiency When Used with the Appropriate Flush ValveStandard Height Elongated BowlToilet Seat not Included Description This high efficiency floor mount bowl operates at a conservative 1.1gpf 1.28 gpf or 1.6 gpf and requires a 5-1/4 or 7-1/4 vertical rough-in. It features a siphon jet fully glazed trapway and 1-1/2 top spud for a flushometer valve to endure reliability and performance. Its elongated bowl brings added comfort to the seat.