Kohler K-4468-RA-0 Wellworth 1.6 gpf Tank with Right -Hand Trip Lever, White Kohler Well worth Class Five 1.6 Gpf Toilet Tank With Right Hand Trip Lever, White Class Five - provides tremendous bulk waste flushing performance and best-in-class bowl cleanliness The product is manufactured in China 12" rough-in Class Five(R) - provides tremendous bulk waste flushing performance and best-in-class bowl cleanliness 3-bolt Installation - Three pre-installed tank bolts save installation time Canister flush valve provides smooth flushing actuation with consistent water usage, flush after flush 1.6 gpf