Features APPLICABLE SCENARIO: Water meter is widely used in dozens of industries and fields such as factory, office building, school, property, apartment, rental house, oil, natural gas, chemical industry, electric power, medicine, water treatment, industrial sys TRANSMISSION MODE: The water meter is a dry water meter, and the counting mechanism and the measuring mechanism are driven by a magnetic coupling CLEAR AND PREVENT FREEZING: The water meter has the characteristics of convenient reading, good prevent freezing performance, and can maintain a clear reading for a long time CORROSION RESISTANT ALL PLASTIC CASE: Water meter case use new imported materials, aging proof, corrosion resistant COMPLETE ACCESSORIES: Water meter with 2 sealing rings, nuts, screws, easy to install and use Specification: Item Type: Water Meter Nominal Diameter: DN15 Q3 = 2.5 Q3 or Q1=100 Overload Flow: 3.1m³/h Boundary Flow Q2: 0.04m³/h Minimum Flow Q1: 0.025m³/h Common Flow Rate: 2.5m³/h Maximum Scale: 99,999m³ Minimum Reading: 0.0001m³ Size: Approx. 15mm / 0.59in Package List:1 x Water Meter2 x Seal Ring2 x Nut2 x Screw Package List 1 x Water Meter 2 x Seal Ring 2 x Nut 2 x Screw