Genie GCG350L-1X 1/2-Horsepower AC Chain Glide Garage Door Opener Patented enclosed in-line chain design for smooth operation Easier installation--fewer parts to assemble Low maintenance--factory-installed chain, no lubrication required Intellicode access security system helps prevent unauthorized entry 1-button remote and features a 5 year motor and 2 year parts warranty.* * Limited and nontransferable. See warranty for details.