The LCN SEM7810-E400-AL Extension, 4", Aluminum is a 4 inch, Aluminum Extension is an accessory for the Sentronic® SEM 7800 Series which are heavy duty, electrically controlled door holding magnets. Magnets are fail safe and hold until the current is interrupted. A manual door closer is used to control and close the door.
Features include:
- Extension - 4˝
- Metal
- Standard
- Aluminum
