Photo 1 of 4 Pack Sliding Screen Door Tension Spring Fits for Academy Doors, Replaces B 638, B 687, B 639 and B 756 Used on Both Top and Bottom, 1" Concaved Steel Ball Bearing

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Photo 1 of 4 Pack Sliding Screen Door Tension Spring Fits for Academy Doors, Replaces B 638, B 687, B 639 and B 756 Used on Both Top and Bottom, 1" Concaved Steel Ball BearingPhoto 2 of 4 Pack Sliding Screen Door Tension Spring Fits for Academy Doors, Replaces B 638, B 687, B 639 and B 756 Used on Both Top and Bottom, 1" Concaved Steel Ball Bearing