Fire Door Stop Top System
- UL listed as a Miscellaneous Fire Door Accessory
- UL tested and listed to allow for excessive clearances up to 1/2″ on steel doors
- UL fire-rated for up to 180 minutes
- Does not increase or decrease your fire door assembly’s existing fire rating
- Tested under NFPA-252 with hose stream, ANSI/UL 10B with hose stream, UL 10C, CAN/ULC S104-10
- Each UL labeled Fire Door Stop Top System, $175.