Zero International 360AA Heavy...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$111.99
Zero 360 Mortised Heavy Duty Automatic Door Bottom Clear Anodized Aluminum Finish

Zero International 360AA Heavy-Duty Full Mortise Automatic Door Bottom with Anodized Aluminum Housing

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Model: 360AA30

In Stock (leaves warehouse same day if ordered before 3pm ET)

$111.99
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Zero International 360AA Heavy-Duty Full Mortise Automatic Door Bottom with Anodized Aluminum Housing

The Zero International 360AA is a heavy-duty full mortise automatic door bottom engineered with patented technology to create an efficient seal against the floor or saddle. As the door closes, the adjustable plunger compresses against the door frame, activating a concealed flat spring mechanism that drops the sealing element into place. Constructed with an anodized aluminum (AA) housing and supplied with closed cell sponge neoprene, the 360AA is fire-rated UL10C and tested to ANSI/BHMA R3C3241, making it a reliable choice for commercial door assemblies requiring dependable perimeter sealing.

Key Features

  • Anodized Aluminum Construction: AA finish housing provides long-term corrosion resistance and durability for commercial door applications.
  • Closed Cell Sponge Neoprene Seal: Supplied with a resilient neoprene sealing element that maintains consistent contact for effective sealing performance.
  • Automatic Plunger Activation: The adjustable plunger compresses against the door frame during closing, activating a concealed flat spring mechanism for consistent, hands-free operation every cycle.
  • Environmental Sealing Performance: Designed to block penetration by air, sound, smoke, and flames, contributing to improved energy efficiency and life safety compliance.
  • Full Mortise Design: Heavy-duty full mortise construction integrates cleanly into the door bottom for a finished, low-profile appearance.
  • Fire-Rated Assembly Component: UL10C positive pressure fire rating supports use in fire-rated door assemblies where code compliance is required.

Certifications & Compliance

  • Fire Rated – UL10C – Positive Pressure
  • ANSI/BHMA: R3C3241

Technical Specifications

  • Commercial/Residential: Commercial
  • Product Group: Door Trim and Accessories
  • Product Subgroup: Door Bottom Sweeps and Door Shoes
  • Fire Rating: Fire Rated – UL10C – Positive Pressure
  • Department: Door Hardware

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Zero International 360AA?

Zero International door bottoms deliver professional-grade sealing performance through patented automatic activation technology, anodized aluminum construction, and a closed cell sponge neoprene seal rated UL10C for positive pressure fire-rated assemblies. Engineered for demanding commercial door applications where consistent air, sound, smoke, and flame sealing performance is essential.

Product Specs

Commercial/Residential:
Commercial
Product Group:
Door Trim and Accessories
Product Subgroup:
Door Bottom Sweeps and Door Shoes
Product Type:
Door Bottom
Fire Rating:
Fire Rated – UL10C – Positive Pressure
Department:
Door Hardware

Zero International 360AA30 – Frequently Asked Questions

1) What lengths does the Zero International 360AA automatic door bottom come in, and which one do I order for a 36 inch door?
Three lengths: 30 inches, 36 inches, and 60 inches. An automatic door bottom is ordered to the width of the door leaf it goes into, so a 36 inch leaf takes the 36 inch unit and a wide leaf that a 36 inch unit will not span takes the 60. Get the leaf width off the door itself, not the frame opening.
2) Does the Zero 360AA door bottom mortise into the door, or does it surface mount?
Full mortise. The 360AA housing recesses into a machined channel in the bottom edge of the door and finishes flush, so nothing hangs below the leaf. Budget for the prep: either order the door factory prepped for a mortised automatic door bottom or route the channel in the field. If the door cannot be machined, a surface applied automatic door bottom or a face mounted sweep is the route to take instead.
3) Can the Zero 360AA automatic door bottom be used on a UL fire rated door assembly?
Fire rated, UL10C positive pressure, so the 360AA can go into a fire rated door assembly where the gasketing itself has to carry the rating. It is also tested to ANSI/BHMA R3C3241. Those are the two lines an inspector or a spec writer looks for on healthcare, education, and government work, where the door bottom gets checked along with the door, frame, and closer.
4) Will the Zero 360AA seal to a bare finished floor, or do I need a threshold under the door?
Either one works. The 360AA seals against the floor or against a saddle, and the plunger that triggers it is adjustable, so the drop gets set to the gap you actually have under that leaf. On an opening that already has a saddle or threshold, set the plunger so the neoprene meets the saddle rather than reaching past it to the floor.
5) Automatic door bottom or a regular door sweep for a door that swings over carpet?
An automatic door bottom is what you want when a fixed sweep would drag. On the 360AA, a plunger contacts the frame as the door closes and a concealed flat spring drops the sealing element down to the floor; it is only in contact when the door is shut, so it clears carpet, tile transitions, and floor mats on the swing. A sweep rides the floor at all times, which scuffs carpet, wears the seal, and adds drag the closer has to overcome.
6) Will a Zero 360AA cut the noise and light coming under an office door?
It closes the undercut, which is where most of the sound, light, and air movement gets through. When the door shuts, the neoprene seal drops against the floor or saddle and blocks air, sound, smoke, and flame at the bottom of the leaf. It does nothing for the head and jambs, though, so if the goal is a quiet room you pair it with perimeter gasketing on the frame.
7) I have a pair of doors. Do I need two Zero 360AA units?
One per leaf, each sized to that leaf. A pair of 36 inch leaves takes two 36 inch units. Note what it does not cover: an automatic door bottom seals the gap under the leaf only, so the vertical gap where the two leaves meet still needs an astragal or a meeting stile seal, and the head and jambs need their own gasketing.
8) Can I standardize on one door bottom across a building that has both fire rated stair doors and regular office doors?
Yes, and that is a good use for the 360AA. Because it is fire rated UL10C positive pressure, the same part covers the rated stair and corridor doors and the non-rated office doors, so maintenance stocks one item instead of two. The only thing that changes opening to opening is length, ordered at 30, 36, or 60 inches to match the leaf, and the plunger adjustment for the gap at each door.
9) Does the Zero 360AA come with the seal, and what material is it?
The sealing element ships with the unit and it is closed cell sponge neoprene. The housing is anodized aluminum; the neoprene strip is the part that actually contacts the floor or saddle, which makes it the wear item on the assembly rather than the housing.
10) What does the AA stand for in Zero International 360AA?
AA is the housing material and finish: anodized aluminum. It is the extrusion the seal and spring mechanism sit inside, and the anodizing is what gives it corrosion resistance in commercial service. So a 360AA is the 360 automatic door bottom supplied with the anodized aluminum housing.
How fast can I get the Zero International 360AA30 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Zero International 360AA30 come with a warranty?
Absolutely. The Zero International 360AA30 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Zero International 360AA30?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Zero International 360AA30 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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