Adopts the source material for stable and reliable performance. The counting system uses vacuum sealing to prevent condensation atomization. The word wheel and pointer display remain clear for long-term reading and are never polluted. The counter features an arbitrary rotation function for convenient meter reading. Offers a wide measuring range and small initiating flow. Features a compact size and attractive appearance. Color: As Shown. Material: Metal. Size: 29.5 x 9.5 x 11 cm. Nominal Diameter: 20 mm. Nominal Pressure: 1.0 MPa. Demarcation Flow: 1 m3/h. Working Temperature: 0-90 C. Maximum Scale: 9999. Minimum Reading: 0. Path: 20 mm. Caliber: 20 mm. Protective Cover: The cover protects the glass from being easily broken by accident. Durable Material: Made from materials resistant to corrosion and condensation deposits. The meter cover is made of plastic. The bearing elements are made of quality copper, wear-resistant synthetic material, and other elements made of modern plastics. Easy To Install: Installation requires one wrench and some sealing material. Please