Restore smooth, effortless operation to your sliding patio door with this Tandem Stainless Steel Roller Assembly. Designed with a unique bottom-mount housing, this roller assembly is commonly used on Andersen sliding patio doors and many other wood patio door brands. It is an ideal choice for homeowners and DIY installers seeking a durable replacement solution.The assembly includes two 1-1/2 inch concave stainless steel ball bearing rollers housed in a corrosion-resistant stainless steel frame. This construction provides strength, durability, and long-lasting performance, especially in coastal or high-humidity environments where rust and corrosion are common issues.The stainless steel housing measures 11/16 inch wide, 1-3/16 inches tall, and 4-5/8 inches long, with a mounting tab at each end for secure installation. It is designed to fit into a mortised pocket in the bottom rail of the door. For added convenience, the roller assembly features a side adjustment mechanism, allowing you to fine-tune the door height and alignment with a standard screwdriver.Whether you are repairing an Andersen sliding door or replacing worn rollers on another wood patio door, this stainless steel roller assembly provides a reliable and long-lasting solution to keep your door gliding smoothly. Please refer to the line art drawing for exact dimensions to ensure compatibility before purchasing, as this is not a universal part.