KOHLER K-4418-0 Cimarron 1.6 gpf Class Five Toilet Tank, White KOHLER cimarronaquapistontoilet tank with left-hand trip lever, 1.6 gph, white - 581245 This is highly durable This is manufactured in United states Please see K-3589 Cimarron Comfort Height two-piece toilet for full details 12" rough-in Class Five canister flush valve provides smooth flushing actuation, with consistent water usage, flush after flush Exclusive DryLock(TM) fast installation system prevents potential leak points during installation and throughout the life of the product Combines with the K-4309 Elongated Toilet bowl with Class Five flushing technology to create the K-3589 Cimarron Comfort Height EB Toilet 1.6-gallon per flush Combination with Class Five flushing Technology