4 Pack Sliding Screen Door Tension Spring Fits for Bay Mills Doors, Replaces B 701, B 702 and B 814 Used on Both Top and Bottom, 1" Concaved Steel Ball Bearing

Compatible with Bay Mills as well as a variety of other sliding screen door manufacturers for replacing similar spring tension rollers. | 1 in. spring-loaded roller attached with an adjustable steel housing. | Includes screw on top and adjusting sleeve. | 4 pack included used on the top and the bottom of the sliding screen door, we recommend replacing all 4 rollers on single door panel at the same time.