Change to the modern 2-taps fitting by Koller. It consists of a knob and a tilt-handle which mixes and regulates the cold and warm water at the same time (cold- and warm water mixer-tab) while filling the tub. The 2-taps fitting has the upgrade of the switch (to the waterfall and the hand-shower). High quality 2-taps fitting with ceramic cartridge.
Trusted Shops Reviews Toolkit: 1.1.3