CERTIFIED by UL to CAN/ULC-S104 and ANSI/UL10B, complies with NFPA 80 and NFPA 252 for application to Hollow Metal fire doors rated up to 3 Hrs., and Wood fire doors rated up to 45 minutes.

Mortise bottom of door on center line for Model 422N, 522N: 1" wide x 2-1/8" deep, Model 423: 15/16" wide x 1-5/8" deep. Cut door bottom to exact net width of door. DO NOT CUT

POSITIVE PRESSURE TESTED GASKETING MATERIALS FOR FIRE DOORS FOR APPLICATION TO HOLLOW-METAL-TYPE FIRE DOORS RATED UP TO 3 HOURS AND WOOD-TYPE FIRE DOORS RATED UP TO 3/4 HOUR. SMOKE & DRAFT CONTROL GASKETING (CATEGORY H) TESTED TO UL 1784; MEETS REQUIREMENTS OF NFPA 105, IBC FOR USE ON “S” LABEL DOORS.

NGP 522 Fully Mortised, Heavy Duty Automatic Door Bottom creates a tight seal at the bottom of doors to prevent infiltration of sound, light, drafts and more. Fitted with a solid neoprene bulb seal.

National Guard Products 522N 36" Automatic Door Bottom, Heavy Duty, Length: 36", Mill Finish Aluminum with Black Neoprene insert, Max Drop: 7/8", Mortise Mount

NGP 522N 36" Mill Aluminum Heavy-Duty Mortise Automatic Door Bottom with Neoprene Seal is engineered for superior performance in commercial settings. Made from durable Aluminum Alloy 6063, T5 Temper, this door bottom features a robust synthetic EPDM rubber seal encased in a polypropylene thermoplastic matrix, ensuring effective moisture ...

National Guard Products 522N mortise mounted automatic door bottom with neoprene bulb insert that blocks drafts and moisture from entering interior spaces through gap at bottom of the door, available with optional lead lining for radiation shield.

NGP 522N-60 84" Mill Aluminum Heavy-Duty Mortise Automatic Door Bottom with Neoprene Seal is engineered for superior performance and durability in commercial restroom applications. Constructed from Aluminum Alloy 6063 with a T5 temper, this door bottom is designed to withstand the rigors of daily use while providing exceptional sealing ...

15/16" 2" 7/8" Max Drop NGP-GKT-522N-PCS-1123-A MEMPHIS 4985 East Raines Road Memphis, TN 38118 CARSON CITY

NGP 522N-60 48" Mill Aluminum Heavy-Duty Mortise Automatic Door Bottom with Neoprene Seal offers exceptional sealing performance for commercial restroom applications. Crafted from durable Aluminum Alloy 6063 with a T5 temper, this product is built to withstand the rigors of high-traffic environments.