Zero International 1840AA Inte...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$82.28
Zero 1840AA Interior Astragal with Sponge Neoprene

Zero International 1840AA Interior Astragal with Sponge Neoprene Insert for Aluminum or Wood Doors

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Model: 1840AA 41
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$82.28
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Zero International 1840AA Interior Astragal with Sponge Neoprene Insert for Aluminum or Wood Doors

The Zero International 1840AA is a surface-mount interior astragal engineered to meet demanding perimeter sealing requirements for commercial door openings. Featuring a sponge neoprene insert, this adjustable sealing system is designed for aluminum or wood doors and delivers reliable, high-performance sealing that supports sound control applications. Built to the same rigorous standards ZERO perimeter seals are known for, the 1840AA provides consistent, durable protection across the meeting stile.

Key Features

  • Sponge Neoprene Insert: Provides a resilient, compressible seal that helps control sound transmission at the door meeting stile.
  • Surface Mount Design: Straightforward surface-mounted installation simplifies retrofit and new construction applications.
  • Interior Astragal Configuration: Purpose-built as an interior astragal for use at the meeting point of paired door openings.
  • Door Material Compatibility: Suitable for use on both aluminum and wood doors, offering flexibility across common commercial door types.
  • Adjustable Sealing System: Designed as part of ZERO's adjustable perimeter seal line, supporting consistent seal performance over time.
  • Commercial-Grade Reliability: Engineered to meet the high standards for reliability and performance expected in commercial door sealing applications.

Technical Specifications

  • Commercial/Residential: Commercial
  • Product Group: Door Trim and Accessories
  • Product Subgroup: Astragals, Gaskets and Weatherstripping
  • Product Type: Meeting Stiles
  • 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 1840AA?

Zero International perimeter seals are engineered to meet rigorous industry standards for reliability and sealing performance. The 1840AA's sponge neoprene insert and surface-mount design deliver dependable sound control performance for aluminum or wood door openings in demanding commercial environments. Choosing the 1840AA means specifying a meeting stile solution built on ZERO's established adjustable sealing system approach.

Manufacturer Resources

Zero Full Line Catalog

Product Specs

Commercial/Residential:
Commercial
Product Group:
Door Trim and Accessories
Product Subgroup:
Astragals, Gaskets and Weatherstripping
Product Type:
Meeting Stiles
Department:
Door Hardware

Zero International 1840AA 41 – Frequently Asked Questions

1) Will the Zero 1840AA astragal work on a pair of aluminum storefront doors, or is it only for wood?
Both. The 1840AA interior astragal is made for aluminum or wood doors, so it covers hollow-metal-adjacent aluminum stile-and-rail pairs and wood pairs alike. It mounts to the surface of the meeting stile, so there is no need to mill or rout the door edge either way.
2) What lengths does the Zero 1840AA astragal come in for a 7 foot door?
Three lengths are offered: 41 inches, 84 inches, and 87 inches. A standard 7 foot door is 84 inches, so the 84 inch piece runs the full meeting stile with no cutting. The 87 inch piece gives you three extra inches to trim to a taller frame or an undercut condition, and the 41 inch piece suits a half-height or transom-divided leaf. All three are Clear Anodized.
3) Is the Zero 1840AA meant for exterior doors or interior only?
Interior. The 1840AA is built as an interior astragal with a sponge neoprene insert aimed at sound control across the meeting stile. For an exterior pair taking weather, wind-driven rain, and temperature swings, specify an exterior-rated meeting stile seal instead.
4) Can the 1840AA astragal be retrofitted to existing doors, or does it only work in new construction?
Retrofit is straightforward. The 1840AA is surface mounted, which means it fastens to the face of the meeting stile rather than requiring a kerf or a routed pocket in the door edge. Existing pairs already hung and swinging take it without pulling the leaf.
5) Do I need an astragal on a pair of doors, or can I use a mullion instead?
They solve different problems. A removable mullion is structural hardware that gives each leaf something to latch against; an astragal like the 1840AA is a seal at the meeting stile. The 1840AA is the interior type with a sponge neoprene insert, so its job is closing the gap between the two leaves for sound control, not providing a latching point. If the pair already latches leaf-to-leaf and you only have a light and noise gap down the center, the astragal is what you want.
6) Will the 1840AA astragal match the anodized aluminum trim already on my building's doors?
The 1840AA is supplied in Clear Anodized, which is the standard mill-look aluminum finish that pairs with clear anodized storefront framing, push bars, and existing aluminum door stiles. If your openings are dark bronze or painted, the clear anodized extrusion will read as a visible silver line down the meeting stile.
7) Is sponge neoprene the right insert material for a door seal in a school or hospital corridor?
Sponge neoprene compresses under light closing force and springs back, which is why it is used at meeting stiles where the two leaves have to close against each other without fighting the closer. That resilience is what carries sound control performance over repeated cycles in high-traffic commercial openings, and the 1840AA is specified as a commercial product for exactly these environments, including educational and healthcare facilities.
How fast can I get the Zero International 1840AA 41 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 1840AA 41 come with a warranty?
Absolutely. The Zero International 1840AA 41 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 1840AA 41?
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 1840AA 41 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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