Repair Kit, for K-1, K-11, K-22, K-50, K-51, K-52, K-53, K-59, K-101, K-125, K-126 & K-316, fits faucets supplied before January 2016 (K-22 faucets after 1/2016 as well), hot & cold color rings have exposed screw head, handles imprinted ‘Taiwan’ on side facing faucet body, ( For K-59 only, If you have K-59 with exposed screw heads & not imprinted Taiwan on handle, contact factory for assistance), if you have a faucet without exposed screw heads (supplied beginning in November 2015), order K-00HA instead of K-00