POSITIVE PRESSURE – CERTIFIED by UL to ANSI/UL10C, complies with IBC, NFPA 80 and NFPA 252 for application to Hollow Metal and Wood fire doors rated up to 90 minute with excessive door and frame clearances, measuring up to 5/16
CERTIFIED by UL to 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 and frame clearances, measuring up to 5/16