CERTIFIED by UL to CAN/ULC-S104 and ANSI/UL10B, complies with NFPA 80 and NFPA 252 for application to Hollow Metal and Wood fire doors rated up to 90 minute with excessive door bottom undercut/clearances, measuring up to 1-3/8
POSITIVE PRESSURE – CERTIFIED by UL to ANSI/10C, complies with IBC, NFPA 80 and NFPA 252 for applications to Hollow Metal and Wood fire doors rated up to 90 minute with excessive door bottom undercut/clearances, measuring up to 1-3/8