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.

• Used by a variety of sliding screen door manufacturers
• 2-1/2 in. straight tension spring
• 1 in. concave roller
• Heat treated spring and high density polyethylene roller