NGP 674A 1" Concealed Fastener...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$49.20
NGP NGP 674A 1" Concealed Fastener with Nylon Brush Sweep, Anodized Aluminum NGP-674A

NGP 674A 1" Concealed Fastener Door Sweep with Nylon Brush and Anodized Aluminum Construction

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Model: 674A-36

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

$49.20
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NGP 1" Concealed Fastener Door Sweep with Nylon Brush and Anodized Aluminum Construction

Professional Door Bottom Sealing Solution

The NGP 1" concealed fastener door sweep combines anodized aluminum construction with synthetic polyamide nylon brush material for effective door bottom sealing. This commercial-grade door sweep features aluminum alloy 6063 T5 temper construction with excellent temperature range performance from -70 F to 425 F. The synthetic polymer polyamide brush provides excellent abrasion resistance, flexibility and memory while maintaining moisture resistance for long-term performance.

Professional Features & Benefits

  • Durable Aluminum Construction: Aluminum alloy 6063 T5 temper provides exceptional strength and corrosion resistance for commercial door applications.
  • High-Performance Nylon Brush: Synthetic polyamide material offers excellent abrasion resistance, flexibility and memory for consistent sealing performance.
  • Wide Temperature Range: Operates effectively from -70 F to 425 F for versatile installation environments and climate conditions.
  • Moisture Resistant Design: Synthetic polymer construction resists moisture while retaining insecticides well for pest control applications.
  • Concealed Fastener System: Clean appearance with slotted screw holes for precise adjustment during installation.
  • Complete Hardware Included: #6 x 3/4" stainless steel sheet metal screws furnished for secure mounting.
  • Environmental Compliance: REACH and RoHS compliant materials meet current environmental regulations.
  • Optional Fast Attach Tape: FATT option available for alternative mounting applications.

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 T5 temper construction and synthetic polyamide brush materials rated for extreme temperature performance from -70 F to 425 F. REACH and RoHS compliant materials ensure environmental responsibility while maintaining excellent abrasion resistance and flexibility. Engineered for demanding commercial applications where dependable door sealing performance is essential.

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 674A-36 – Frequently Asked Questions

1) What lengths does the NGP 674A brush door sweep come in, and can I cut it down to fit my door?
The 674A comes in two lengths, 36 inches and 42 inches. Pick the length at or above your door width and trim the aluminum retainer to size on the job. The 6063 T5 aluminum extrusion cuts cleanly with a miter saw and a non-ferrous blade. On a standard 36 inch commercial leaf the 36 inch piece works as-is; the 42 inch is there for 42 inch wide leaves and for openings where you want cutting room.
2) Is a nylon brush sweep or a rubber/vinyl blade sweep better for my door?
Brush versus blade comes down to what the sweep has to cross. The 674A uses a synthetic polyamide nylon brush, which flexes over uneven thresholds, carpet, and grit without binding, and its memory brings it back to shape. That is why brush sweeps go on doors that sweep across sills or see constant traffic. A solid insert seals tighter against air and water on a flat, true threshold: the Pemko 345V uses a GREENGUARD Gold certified Eco-V insert and the Cal-Royal BTN-112 uses a neoprene insert in an extruded aluminum retainer. If you are chasing a draft or a light gap on a clean sill, go to an insert type. If the door drags or the floor is rough, the brush is the one that survives.
3) I need to stop rain from running under my exterior door. Is a brush sweep the right part?
A brush sweep is not the strongest choice against driving rain. The 674A nylon brush seals against air, light, dust and pests, and it tolerates rough or uneven sills, but bristles pass water under pressure. For water at an exterior opening, look at a rain drip type such as the Pemko 3452 surface plate rain drip door bottom, which throws water off the face of the door before it reaches the bottom. Many exterior openings use both: a drip above and a sweep below.
4) What is the closest equivalent to the NGP 674A door sweep from another manufacturer?
The Pemko 29326NB is the nearest match. It is a brush door bottom sweep in clear anodized aluminum with a concealed fastener design, which is the same combination the NGP 674A uses: anodized aluminum extrusion, nylon brush seal, and concealed fasteners with slotted holes for adjustment. The 674A is offered in 36 inch and 42 inch lengths, while the Pemko 29326NB is a 36 inch sweep, so on a 42 inch opening the NGP length covers the door without splicing. Both mount to the face of the door bottom and hide the fastener heads behind the retainer.
5) Should I use a brush sweep or a vinyl insert sweep on a door bottom with an uneven threshold?
A brush seal and a solid insert behave differently across a gap that changes along the width of the opening. The NGP 674A carries a synthetic polyamide nylon brush, which flexes and returns to shape and rides over a floor that is not flat. The Pemko 345V and the Pemko 56 Series both use an Eco-V insert, a continuous seal strip that bears against the floor along its whole length, and the Cal-Royal BTN-112 uses a neoprene insert in an extruded aluminum retainer. Where the slab dips or a carpet edge crosses the swing path, the brush conforms; where you want a continuous contact seal against a flat threshold, the insert types give that.
6) Which door bottom should I specify when the project requires a low-emitting materials certification?
The Pemko 345V is the one to look at for that requirement; its Eco-V insert is GREENGUARD Gold certified, which is the certification most commonly called out on healthcare, education, and LEED-tracking projects. The NGP 674A is built from REACH and RoHS compliant materials, which addresses restricted substances in the materials themselves rather than indoor emissions. If the submittal asks for a chemical compliance statement, the 674A answers it; if it names GREENGUARD Gold specifically, the 345V is the product that carries it.
7) The NGP 674A does not stop water from running down the face of an exterior door. What do I use instead?
A brush sweep like the NGP 674A seals the gap under the door but does nothing to redirect water running down the door face. The Pemko 3452 is a surface plate rain drip door bottom, which combines the door bottom with a projecting drip that throws water clear of the joint. On an exterior opening taking driven rain, that is the part that solves the problem; the 674A is the choice where the concern is air, light, dust, and pest passage under the door rather than sheeting water.
8) Do I need to buy screws separately for the NGP 674A door sweep?
Screws are furnished. Each 674A ships with #6 x 3/4 inch stainless steel sheet metal screws for mounting to the door face. Nothing else is required for a standard install. If you are putting it on a surface you do not want to drill, NGP offers the FATT fast attach tape option instead of fasteners.
9) Can I adjust the height of the NGP 674A sweep after it is mounted?
Yes, the mounting holes are slotted, so you set the brush height against the floor during install and snug the screws once the seal is right. That matters on doors where the floor is not level end to end, or where the sweep has to clear a threshold at one side. The fasteners sit concealed for a clean face after adjustment.
10) Will a nylon brush door sweep hold up in an unconditioned warehouse or a boiler room?
Temperature range on the 674A brush is -70 F to 425 F, so unheated warehouses, loading docks, mechanical and boiler rooms are inside its working range. The retainer is anodized 6063 T5 aluminum, which resists corrosion in damp and washdown areas, and the polyamide brush resists moisture rather than swelling or matting.
11) Will the NGP 674A door sweep help keep insects and rodents out under a door?
That is one of the things a dense nylon brush does well. The polyamide filament retains insecticides, so pest control programs can treat it, and the brush closes the gap under the door without a hard blade that lifts on an uneven floor. It is a commercial-rated product, used on warehouses, food service back-of-house, healthcare and multi-tenant residential entries where the under-door gap is the pest route.
12) What is the difference between the NGP 674A and the Pemko 29326NB brush sweep?
Both are brush door bottom sweeps in clear anodized aluminum with concealed fasteners, so they solve the same problem the same way. The Pemko 29326NB is a fixed 36 inch piece. The NGP 674A is offered in 36 inch and 42 inch, so if your leaf is wider than 36 inches the 674A is the one that covers it without splicing. For a straight like-for-like swap on a 36 inch door, either will do the job.
13) Is the NGP 674A door sweep REACH and RoHS compliant for a government or institutional spec?
REACH and RoHS compliant materials, yes. That covers the aluminum retainer and the synthetic polyamide brush. It is specified as a commercial product and is used on government and municipal buildings, healthcare, and educational facilities. If your spec also calls for a low-emitting interior product certification, the Pemko 345V carries a GREENGUARD Gold certified Eco-V insert.
14) Is the Cal-Royal BTN-112 a direct swap for the NGP 674A?
They are not the same seal type even though both are aluminum-retainer door bottom sweeps. The Cal-Royal BTN-112 holds a neoprene insert in an extruded aluminum retainer, while the NGP 674A holds a synthetic polyamide nylon brush in an anodized aluminum 6063 T5 extrusion. Swapping one for the other on adjacent doors in the same corridor gives you a visibly different seal at the floor line and a different wear pattern over the door's swing. If you are matching what is already installed across a fleet of doors, match the seal material, not just the retainer.
15) Which door sweep holds up in a high-heat area like a boiler room or a kitchen back door?
The NGP 674A brush is rated from -70 F to 425 F, which covers mechanical rooms, kitchen service doors, and unconditioned exterior openings in cold climates without the seal going brittle or soft. Among the alternatives, the Pemko 56 Series and Pemko 345V use an Eco-V insert and the Cal-Royal BTN-112 uses neoprene, all elastomer-type seals whose behavior is governed by their own temperature ratings. For an opening where the surface temperature swings hard in both directions, the polyamide brush on the 674A is the seal built for that span.
16) I need to standardize door bottom sweeps across a building with 36 inch and 42 inch doors. Which product covers both?
The NGP 674A is stocked in 36 inch and 42 inch lengths, so both door widths take the same part number family, the same anodized aluminum profile, and the same nylon brush seal. Among the alternatives, the Pemko 29326NB and the Pemko 56 Series are both 36 inch sweeps, which means a 42 inch leaf would need a different length from that line. For a facility standard where maintenance stocks one product and one look across every opening, the 674A covers both widths.
17) Can I standardize the NGP 674A across every door in my building?
For a fleet of similar openings, yes, within the two lengths offered: 36 inch and 42 inch. It surface mounts to the door face with the supplied #6 x 3/4 inch stainless screws, so it is not tied to any particular lock, hinge, or door prep, and it goes on hollow metal and wood doors alike. Where a door is wider than 42 inches, or where the opening needs a water-shedding drip instead, you will need a different part for those specific doors rather than forcing this one.
How fast can I get the NGP 674A-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 674A-36 come with a warranty?
Absolutely. The NGP 674A-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 674A-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 674A-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.
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