Automatic Door Bottom, 1/4x36In, Aluminum MPN:220NA-3
Automatic Door Bottom, 1/4x36In, Aluminum
Upgrade your doors with the Automatic Door Bottom from National Guard, featuring a durable aluminum housing and flame-resistant, moisture-resistant design. This essential component fits wood fire door mortise restrictions, ensuring a secure seal and preventing heat and moisture from escaping. The included #8 x 1-1/4 In. stainless steel sheet metal screws provide a secure installation. Perfect for residential and commercial applications, this door bottom is ideal for use in high-traffic areas, fire-rated doors, and areas prone to moisture. With its easy installation and reliable performance, this automatic door bottom is a must-have for any door installation project.
Top product features:
- Fits Wood Fire Door Mortise Restrictions
- Flame-Resistant
- Moisture-Resistant
Top product applications:
- Automatic Door Bottom, 1/4x36In, Aluminum from National Guard can be used in Wood Fire Door applications.
- Automatic Door Bottom, 1/4x36In, Aluminum from National Guard is suitable for use in Flame-Resistant applications.
- Automatic Door Bottom, 1/4x36In, Aluminum from National Guard can be used in Moisture-Resistant applications.
Automatic Door Bottom, Housing Material Aluminum, Includes #8 x 1- 1/4 In. Stainless Steel Sheet Metal Screws, Features Fits Wood Fire Door Mortise Restrictions, Flame-Resistant, Moisture-Resistant
Additional Information
- Country of Origin: US
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 36.00
- Package Width: 3.00
- Package Height: 1.00
- Package Weight: 1.75
Product info last updated on February 14, 2026 10:51pm UTC
Category: Door Hardware and Components