Home Dealnews Chamberlain 1/2-HP Chain Drive Battery Backup Smart Garage Door Opener for $199... Dealnews Chamberlain 1/2-HP Chain Drive Battery Backup Smart Garage Door Opener for $199 + free delivery w/ Ace Rewards By ARCOM - 6 October 2022 30 0 SHARE Facebook Twitter Go to the deal page: Chamberlain 1/2-HP Chain Drive Battery Backup Smart Garage Door Opener for $199 + free delivery w/ Ace Rewards