The Annovi Reverberi AR 2707 flange (Kramp 450145) is a genuine aluminum coupling component designed for securely connecting Annovi Reverberi pumps to electric motors. This essential part features a 19 mm shaft diameter and a 100 mm bell housing diameter, making it suitable for electric motors with a power output of 3-5.5 kW. It ensures a reliable and efficient connection for various Annovi Reverberi pump models, including AR 100, AR 120, AR 135, AR 160, AR 185, AR 200, and AR 250.