Teka VTK 938 Kitchen Tap Mixer is a plumbing fixture that combines hot and cold water streams to provide a controlled and adjustable flow of water at a desired temperature. It is commonly used in kitchens for tasks such as washing dishes, preparing food, and filling containers. It has a single lever to adjust both the water temperature and flow rate. 

The spout is the part of the tap from which water flows. The single-handle design enables easy adjustment of water temperature by blending hot and cold water together. This is particularly convenient for quickly obtaining the desired water temperature.