Home Lifestyle & Home Chamberlain Garage Door Opener 8Ft Belt Drive Rail Extension Kit $39.99 Lifestyle & Home Chamberlain Garage Door Opener 8Ft Belt Drive Rail Extension Kit $39.99 By ARCOM - 23 September 2021 69 0 SHARE Facebook Twitter Go to the deal page: Chamberlain Garage Door Opener 8Ft Belt Drive Rail Extension Kit $39.99