The spring holds tension on the cord inside of the fabric of Hunter Douglas Vertiglide Applause and Duette vertical cellular shades. The spring is tied off in the stationary rail on side stack or split stack shades and in the end of the headrail in center stack shades.

Also used in Ovation Cellular Sliders by Comfortex and Vertical Application Honeycomb Shades by Alta.

Sold individually.

Metal.

Hunter Douglas part # 2980115000.