| Spring | Heavy Duty |
| Color | Black |
| Brand | National |
| Finish | Black |
| Material | Steel |
| UPC | 00038613349247 |
| Package Quantity | 1 |
| Unit of Measurement | Each |
| Country of Origin | China |
Steel brackets and chain; spring steel. Zinc-plated finish. Designed to absorb shock, preventing wind damage to screen and storm doors and door closers. For screen and storm doors.
- Can be used on wood or aluminum doors
- Restricts door opening
- Helps protect against damage
- Spring minimizes shock loads from heavy winds







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