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NGP 423STC Automatic Door Bottom | Aluminum
The National Guard Products 423STC is a commercial automatic door bottom (full mortise). Housing 1-11/16" x 3/4", max drop 3/4". Insert: STC 52 acoustical drop bar. Finish: Aluminum. STC 52 acoustical assembly. Lead insert is not available on 423STC.
BHMA A156.22 Grade 1 (1,000,000-cycle). Mortise ADBs are non-handed and are furnished 1/2" shorter than ordered. Specify net length; 20" and over can be cut down up to 1-1/2". Min 11-1/2", max 60". Use with a threshold for the best seal.
Technical Specifications
| Model | NGP 423STC |
| Type | Automatic Door Bottom |
| Mounting | Full Mortise |
| Housing | 1-11/16" x 3/4" |
| Max drop | 3/4" |
| Insert | STC 52 acoustical drop bar |
| Finish | Aluminum |
| Available Lengths | 36", 42", and 48" |
| Fire listing | Non-Rated on this listing (BHMA A156.22 Grade 1; no UL file cited) |
Ordering & Lead Time
Made to order (not stocked). Lead time: 5-7 business days.
| Length | 36 Inch or 42 Inch or 48 Inch |
| Brand | National Guard Products |
| Bottom Weatherseal Type | Automatic Door Bottom |
| Housing Finish | Aluminum |
| Fire Rated | Non-Rated |
| Insert Material | Neoprene |
| Mounting Type | Full Mortise |
| Sweeps, Door Bottom or Rain Drip | Door Bottom |
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