Crown Fire Door Stop 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
- Use with the Crown Latch Protector if latch engagement is an issue.
- US Patent Nos. 9,151,106 & 9,518,422
- Canadian Patent Nos. 2,846,726 & 2,939,255
--- All Products US Patent Nos. 9,151,106 & 9,518,422 | Canadian Patent Nos. 2,846,726 & 2,939,255 ---
