Zenner MNK is a classic household meter known for its reliability and long lifespan. This measuring device is a typical wet dial, where both the measuring chamber and the counting mechanism are filled with water. This design allows the impeller to be directly connected to the counter, eliminating friction loss. As a result, this type of meter starts measuring even at very low consumption levels. For example, an MNK Q3 = 4 begins measuring at a consumption of just 4 l/h. Magnetic tampering with the meter is impossible, and contaminants in drinking water (such as rust or ochre) cannot settle on the impeller shaft or coupling. Zenner MNK is recommended for drinking water with low levels of rust or ochre. Type: MNR. MID Q3: 4. Qn m³/h: 2.5. Connection: 3/4" = 1" union. Length: 190 mm. Housing material: Brass.