Homeline All In One combination service entrance devices are available with ring or ringless type meter socket designs. Devices have factory installed service disconnect(s) in most cases. Many of the All-in One combination service entrance devices (CSED) are suitable for overhead (OH) service with addition of this tunnel kit. Check with local utility for approval. This device is for a 20 space, plug on neutral, surface flush mount. Tunnel kit is 23.57 inches tall, 4.44 inches wide and 3.20 inches deep.