Kohler K-4645-T-33 Highline Classic Pressure Lite Toilet Tank with Tank Cover Locks, Mexican Sand Kohler plumbing products mean beautiful form as much as reliable function Combine with K-4304 or K-4304-L to create K-3493-TL Highline Pressure-Lite(TM) toilet with tank cover locks Please see K-3493 Highline Pressure-Lite toilet for full details Constructed of Vitreous China