This is a center grooved sliding screen door tension roller that is used by a variety of sliding patio door manufacturers. Used on the bottom as well as the top of the sliding screen door. The roller is a 1 in. high density polyethylene ball bearing roller. The tension spring is 2-1/2 in. long and is a heat treated high tension steel spring. For the stainless steel use Prime-Line part B 573.

• Brand Name: Prime-Line
• Diameter: 1 in.
• Length: 1/4 in.
• Material: Steel
• Product Type: Spring Tension Roller Assembly
• Number in Package: 2 pk
• Hardware Included: Yes
• Packaging Type: Carded
• Compatibility: Screen Doors