NGP 335 Mill Aluminum Mortise ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$82.00
$55.26

NGP 335 Mill Aluminum Mortise Automatic Door Bottom with 3/4" Drop

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Model: 335N-36

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

$82.00
$55.26
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NGP Mill Aluminum Mortise Automatic Door Bottom with 3/4" Drop

Professional Automatic Door Sealing Solution

The NGP Mill Aluminum Mortise Automatic Door Bottom provides reliable sealing for commercial door applications with a mortise installation design. Constructed from aluminum alloy 6063 T5 temper with synthetic rubber polymer blend sealing material, this automatic door bottom features a 3/4" maximum drop and requires a 5/8" x 1-9/16" mortise. Available in lengths from 23-1/4" net to 48" with standard end caps, it operates effectively in temperatures from -20 F to 200 F.

Professional Features & Benefits

  • Precision Mortise Installation: Requires 5/8" x 1-9/16" mortise for flush mounting in wood fire doors and standard commercial applications.
  • Optimal Drop Performance: 3/4" maximum drop provides effective sealing against air, sound, and moisture infiltration.
  • Heavy-Duty Construction: Aluminum alloy 6063 T5 temper housing with synthetic rubber polymer blend combining PVC, Nitrile rubber (NBR), and Chloroprene closed cell elastomeric foam.
  • Wide Temperature Range: Operates reliably from -20 F to 200 F with flame resistant and moisture resistant properties.
  • Flexible Length Options: Available from 23-1/4" net to 48" in length with field cutting capability for 36" and longer units (up to 4" reduction).
  • Fire Door Compatible: Meets wood fire door mortise restrictions for code-compliant installations.
  • Enhanced Durability: Excellent abrasion resistance, tensile strength, and memory with good resistance to ozone, sunlight, and aging.
  • Lead-Lined Option: 1/16" thick lead insert available for enhanced sound attenuation when specified as "Lead-Lined".

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Product Category: Door Trim and Accessories
  • Product Group: Door Trim and Accessories
  • Product Subgroup: Door Bottom Sweeps and Door Shoes
  • Product Type: Automatic Door Bottoms
  • Subcategory: Gaskets & Weatherstripping

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Fire-Rated Door Assemblies
  • Sound Control Applications
  • Energy Efficient Building Envelopes
  • Multi-Tenant Residential Properties

Why Choose NGP Quality?

NGP automatic door bottoms deliver professional-grade sealing performance with aluminum alloy 6063 T5 temper construction and advanced elastomeric foam technology. The synthetic rubber polymer blend provides exceptional durability with excellent abrasion resistance and temperature stability from -20 F to 200 F. Engineered for demanding commercial applications where reliable environmental sealing and fire door compatibility are essential.

Product Specs

Product Group:
Door Trim and Accessories
Product Subgroup:
Door Bottom Sweeps and Door Shoes
Product Type:
Automatic Door Bottoms
Subcategory:
Gaskets & Weatherstripping
Commercial/Residential:
Commercial
Product Category:
Door Trim and Accessories
Department:
Door Hardware

NGP 335N-36 – Frequently Asked Questions

How fast can I get the NGP 335N-36 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 NGP 335N-36 come with a warranty?
Absolutely. The NGP 335N-36 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 NGP 335N-36?
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 NGP 335N-36 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.