Greetings from Maqbool Associates, t ypes of meters 1:volumetric rotary piston (DN 15mm) (DN 20mm) and (DN 25mm) 2: notating disc (DN 15mm) (DN 20mm) and (DN 25mm) 3: multi-jet dry dial (DN 15mm) (DN 20mm) and (DN 25mm) 4: static meters (Ultrasonic technology) (DN 15mm) (DN 20mm) and (DN 25mm) 5: static meters (Electromagnetic ) (DN 15mm) (DN 20mm) and (DN 25mm) 6: static meters (fluidic oscilation(smart meters)) (DN 15mm) (DN 20mm) and (DN 25mm) Best regards Zarak Jalil Show More