Photo 1 of Chamberlain C870 Smartphone-Controlled Durable Chain Drive Garage Door Opener with Battery Backup

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Photo 1 of Chamberlain C870 Smartphone-Controlled Durable Chain Drive Garage Door Opener with Battery BackupPhoto 2 of Chamberlain C870 Smartphone-Controlled Durable Chain Drive Garage Door Opener with Battery BackupPhoto 3 of Chamberlain C870 Smartphone-Controlled Durable Chain Drive Garage Door Opener with Battery BackupPhoto 4 of Chamberlain C870 Smartphone-Controlled Durable Chain Drive Garage Door Opener with Battery BackupPhoto 5 of Chamberlain C870 Smartphone-Controlled Durable Chain Drive Garage Door Opener with Battery BackupPhoto 6 of Chamberlain C870 Smartphone-Controlled Durable Chain Drive Garage Door Opener with Battery BackupPhoto 7 of Chamberlain C870 Smartphone-Controlled Durable Chain Drive Garage Door Opener with Battery Backup