Innovative features and performance have made Highline toilets an industry benchmark since 1966. Continuing the tradition is this Highline toilet bowl, which provides a standard chair height and an elongated shape for maximum comfort. This bowl coordinates with several Highline tanks to create a complete two-piece toilet. Elongated bowl offers added room and comfort. Comfort Height¬Æ feature offers chair-height seating that makes sitting down and standing up easier for most adults. Combines with a K-4467/-RA, K-4468/-RA, or K-4841/-RA tank to create a complete 3999/-RA, K-3979/-RA, or K-3949/-RA toilet. Standard 12-inch rough-in.