NGP 679 1" Concealed Fastener ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$47.54
NGP NGP 679 1" Concealed Fastener with 36" Nylon Brush Sweep NGP-679

NGP 679 1" Concealed Fastener Door Sweep with 36" Nylon Brush

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Model: 679A-36
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$47.54
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NGP 1" Concealed Fastener Door Sweep with 36" Nylon Brush

Professional Door Bottom Weatherstripping Solution

The NGP 1" Concealed Fastener Door Sweep provides effective weatherstripping for commercial applications with a 36" nylon brush sweep design. Constructed from aluminum alloy 6063 with T5 temper and featuring a synthetic polyamide brush, this door sweep operates reliably across a temperature range of -70 F to 425 F. The concealed fastener design includes #6 x 3/4" stainless steel sheet metal screws with slotted holes for precise adjustment during installation.

Professional Features & Benefits

  • 36" Coverage Length: Standard door width compatibility with 1" concealed fastener design for clean installation appearance.
  • Wide Temperature Range: Operates effectively from -70 F to 425 F for reliable performance in various climate conditions.
  • Heavy-Duty Construction: Aluminum alloy 6063 with T5 temper provides exceptional durability for commercial door applications.
  • Superior Brush Performance: Synthetic polyamide material offers excellent abrasion resistance, flexibility and memory retention for long-term sealing effectiveness.
  • Moisture and Chemical Resistance: Moisture resistant construction retains insecticides well while maintaining REACH and RoHS compliance.
  • Adjustable Installation: Slotted screw holes allow for precise positioning and alignment during installation with included stainless steel fasteners.
  • Professional Finish Options: Available in anodized aluminum or DKB dark bronze finish to complement various door hardware finishes.

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: Door Sweeps and Bottoms
  • Subcategory: Gaskets & Weatherstripping

Professional Applications

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

Why Choose NGP Quality?

NGP door sweep products deliver professional-grade reliability with aluminum alloy 6063 construction and synthetic polyamide brush materials engineered for demanding commercial applications. The wide temperature range capability and moisture-resistant design ensure dependable weatherstripping performance where consistent environmental control is essential. REACH and RoHS compliant materials provide confidence for modern building requirements.

Product Specs

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

NGP 679A-36 – Frequently Asked Questions

1) Will the NGP 679 door sweep fit a standard 36 inch commercial door?
Yes. The NGP 679 comes with a 36 inch nylon brush sweep, which covers a standard 36 inch door leaf. The retainer uses slotted screw holes, so you can shift it up or down a little to dial in contact with the floor once it is on the door.
2) What is the closest cross-brand equivalent to the NGP 679 brush door sweep?
The Pemko 29326NB is the nearest match. It is a 36 inch brush door bottom sweep in clear anodized aluminum with a concealed fastener design, which lines up with the NGP 679's 36 inch nylon brush, aluminum alloy 6063 T5 retainer and concealed fastener construction. The NGP 679 uses a synthetic polyamide brush rated from -70 F to 425 F and is offered in anodized aluminum or DKB dark bronze, so if the opening needs a dark bronze face, specify the NGP 679 in DKB.
3) If a brush sweep is too coarse for the threshold, what should I use instead?
Move to an insert-style sweep. The Pemko 345V uses a GREENGUARD Gold certified Eco-V insert and the Pemko 56 Series is a 36 inch sweep with an Eco-V insert, both of which seal with a flexible wiper rather than filaments. The Cal-Royal BTN-112 uses an extruded aluminum retainer with a neoprene insert. The NGP 679 relies on a synthetic polyamide brush, which sweeps over uneven or debris-prone floors instead of wiping a flat surface.
4) Should I use a brush sweep or a neoprene/vinyl sweep on an exterior door?
A brush sweep like the NGP 679 uses synthetic polyamide filament, so it keeps sealing over uneven or rough floors and tolerates sliding across thresholds without dragging or tearing. It handles a wide temperature swing, -70 F to 425 F, which matters on unconditioned or industrial openings. Where you want a tighter air and water seal on a flat, smooth threshold, a solid insert sweep is the better call, like the Cal-Royal BTN-112 with its extruded aluminum retainer and neoprene insert, or the Pemko 345V with an Eco-V insert.
5) Does the NGP 679 sweep come with screws, or do I need to supply fasteners?
Fasteners are included: #6 x 3/4 inch stainless steel sheet metal screws. They mount through slotted holes in the 1 inch concealed fastener retainer, so the heads sit hidden behind the brush once the sweep is set.
6) What finishes does the NGP 679 sweep come in, and will they match my existing door hardware?
Two finishes: anodized aluminum and DKB dark bronze. Anodized aluminum pairs with aluminum storefront and clear-anodized frames; dark bronze matches bronze storefront and dark hardware. Both use the same aluminum alloy 6063-T5 retainer, so the profile is identical either way if you are mixing finishes across a building.
7) Can I use this door sweep on a walk-in cooler, boiler room, or other extreme temperature opening?
The brush material is rated from -70 F to 425 F, so freezer vestibules, mechanical and boiler rooms, and unheated warehouse openings are all inside its range. The brush is also moisture resistant and retains insecticides, which is why it turns up on kitchen and food service back doors.
8) Will a brush door sweep stop rain from running under my exterior door?
A brush sweep blocks drafts, light, dust and insects, but filament will not shed water the way a drip cap does. If water intrusion is the problem, add a rain drip such as the Pemko 3452 surface plate rain drip door bottom above the opening, or use a solid insert sweep at the door bottom instead of brush.
9) Will a Pemko 3452 work in place of the NGP 679?
They solve different problems. The Pemko 3452 is a surface plate rain drip door bottom, so it sheds water running down the face of the door at the bottom rail. The NGP 679 is a 36 inch nylon brush sweep with a concealed fastener retainer that closes the gap between the door bottom and the floor. On an exterior opening taking driven rain, the two are often used together rather than one instead of the other.
10) For a facility with low-VOC or green building material requirements, which door sweep fits?
The Pemko 345V carries a GREENGUARD Gold certified Eco-V insert, which is the one to cite where an indoor air quality credit is being tracked. The NGP 679 is built from REACH and RoHS compliant materials with an aluminum 6063 T5 retainer and synthetic polyamide brush, which covers restricted-substance requirements on the hardware itself.
11) Which door sweep handles high heat better, the NGP 679 or a neoprene insert sweep?
The NGP 679 is the one with a published thermal range: its synthetic polyamide brush and aluminum 6063 T5 retainer are rated from -70 F to 425 F, which suits boiler rooms, kitchens and industrial openings. The Cal-Royal BTN-112 is an extruded aluminum retainer with a neoprene insert, a rubber-type seal, and the Pemko 56 Series and 345V use Eco-V inserts.
12) I need 36 inch sweeps to standardize across a building of 36 inch doors. What are my options?
Both the NGP 679 and the Pemko 56 Series come as 36 inch units, as does the Pemko 29326NB. The NGP 679 gives a 36 inch nylon brush in a concealed fastener retainer with slotted holes for adjustment and #6 x 3/4 inch stainless steel screws included, in anodized aluminum or dark bronze. The Pemko 56 Series is an insert-style sweep using an Eco-V insert, and the 29326NB is a brush type in clear anodized aluminum.
13) Is this NGP sweep rated for commercial traffic or is it a residential product?
It is a commercial-grade item. The retainer is extruded aluminum alloy 6063 with T5 temper, and NGP lists it for office buildings, schools, healthcare, retail, industrial and warehouse space, multi-tenant residential, and government facilities. For a property manager standardizing across a portfolio, the same part covers all of those door types.
14) Does the NGP 679 meet REACH and RoHS material requirements for a green building spec?
Yes, the materials are REACH and RoHS compliant. If your spec calls for a GREENGUARD Gold certified component, the Pemko 345V carries a GREENGUARD Gold certified Eco-V insert instead.
15) How much does the brush drop below the door on the NGP 679?
The retainer is the 1 inch concealed fastener profile with the brush filament below it, so plan on mounting the retainer high enough on the door face that the filament just brushes the floor. The slotted holes give you the adjustment to set that contact after the first screws go in, which is how you handle an out-of-level slab without shimming.
How fast can I get the NGP 679A-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 679A-36 come with a warranty?
Absolutely. The NGP 679A-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 679A-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 679A-36 from ZenSupply?
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