Planet SN Automatic Door Bottom for Sliding Doors The Planet SN Automatic Door Bottom is designed specifically for sliding door applications and provides superior protection against light, airflow, weather, and sound. This model takes zero force to operate and does not require a frame or wall for actuation. Additionally, this space-saving solution is able to compensate for inclined floors and seal bottom gaps between 1/4" and 5/8". Accepting orders immediately, standard lead times apply. Pricing is in the 2021 price book onthe Digital Library. For additional information, contact your local sales representative, call the ASSA ABLOY Pemko Customer Service line at 800-283-9988 or visit www.assaabloydooraccessories.us.