KATANA Cleaner Bottle 4 ml, for Restorations and Abutments, MPD Salt, PH:4.51 . KATANA Cleaner has a high cleaning effect due to the surface active characteristic of MDP Salt. In contrast to other cleaners, KATANA Cleaner has a pH value of 4.51 which allows usage not only extra-orally but also intra-orally. 4 ml. Bottle