This basin taps set is a set of two taps. H for hot water and C for cold water. They can be precisely distinguished. Twin taps can easily and accurately adjust water flow and temperature. These mixers basin sink taps are constructed from premium quality brass. The chrome finish makes it more durable and corrosion-resistant. It is also easy to clean and maintain mirror-look. Built-in aerator can provide steady and smooth water flow without splash. Brass valve technology provides longer life & water tight seal Our bathroom sink tap is easy to install. No plumber required. It comes with a 1/2" threaded connection. The water system requires a minimum of 0.5 bar pressure for the tap to work effectively, though we recommend 1.0 bar for best performance.