Prime-Line B 803 4 In. Sliding Screen Door Top Tension Spring, Fits Andersen (2 Pack)

Typically used by Andersen sliding screen patio doors | 4 inch overall length and a 5/16 inch width | Provides tension on the top of the sliding screen door and acts as a guide | Heat treated high tension steel construction | Please refer to the line art drawing and compare with your needs item before purchasing (Not Universal)