B 521 - Screen door 2-1/2 inch Flat Tension Spring, 1 inch high density polyethylene roller, 2 per pkg.

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
  • 2-pack
  • Easy to install
  • No tools required for installation
  • For further dimensional information, please see the line drawing
Roller Width:
Roller Edge Type:
Spring Type:
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