364AA Heavy-Duty Full Mortise Automatic Door Bottom Push-Pull Hardware Grade-1 Certified

Grade-1 Certified

at least two hinges on a door must be spring hinges to provide adequate closing force

And when it comes to heavy-duty closers

LR1031-026-41

ADA compliant thumb turn

364AA Heavy-Duty Full Mortise Automatic Door Bottom Push-Pull Hardware Grade-1 CertifiedThe patented automatic door bottom technology from Zero ensures an efficient seal against the floor or saddle. As the door is closed, the adjustable plunger is compressed against the door frame, activating a concealed flat spring mechanism. Zero door bottoms are designed to block penetration by air, sound, smoke, and flames. AA = Anodized aluminum Supplied with solid neoprene extrusion Fire rated UL10C ANSI BHMA: R3B3241 Consult your local AHJ for