NGP 229WHSS Stainless Steel Au...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$288.75
NGP 229WHSS Stainless Steel Automatic Door Bottom with Brush Seal

NGP 229WHSS Stainless Steel Automatic Door Bottom with Brush Seal - Type 304 Construction

(No reviews yet) Write a Review

Model: 229WHSS -36

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

$288.75
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

NGP Stainless Steel Automatic Door Bottom with Brush Seal - Type 304 Construction

Professional Automatic Door Sealing Solution

The NGP Stainless Steel Automatic Door Bottom delivers reliable sealing performance with durable Type 304 stainless steel construction and synthetic polyamide brush material. Designed for lengths from 11" minimum to 60" maximum with 7/8" maximum drop capability, this automatic door bottom mounts on the push side of doors and features excellent temperature resistance from -70 F to 425 F. The unit includes standard end caps and brushed #4 finish (US32D, 630) for professional appearance.

Professional Features & Benefits

  • Length Flexibility: Available in lengths from 11" minimum to 60" maximum with field cutting capability for 36" and longer units (up to 4" reduction).
  • Maximum Drop Performance: 7/8" maximum drop provides effective sealing against air infiltration and sound transmission.
  • Durable Construction: Type 304 stainless steel housing with synthetic polyamide brush material for exceptional durability and longevity.
  • Temperature Resistance: Operates effectively in temperature range from -70 F to 425 F for diverse environmental conditions.
  • Excellent Material Properties: Polyamide brush offers superior abrasion resistance, flexibility, memory retention, and moisture resistance.
  • Professional Installation: Mounts on push side of door with standard end caps included for complete installation package.
  • Compliance Standards: REACH and RoHS compliant materials ensure environmental and safety compliance.
  • Specialized Applications: Nylon brush recommended for carpet applications where no threshold is provided for optimal performance.

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
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose NGP Quality?

NGP automatic door bottoms feature professional-grade Type 304 stainless steel construction with synthetic polyamide brush materials engineered for demanding commercial applications. The brushed #4 finish (US32D, 630) provides lasting appearance while REACH and RoHS compliance ensures environmental responsibility. Designed for reliable performance across extreme temperature ranges where dependable sealing is 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 229WHSS -36 – Frequently Asked Questions

1) Which side of the door does the NGP 229WHSS mount on?
Push side. It is a surface applied automatic door bottom, so it mounts to the face of the door on the push side and drops the brush seal when the door closes. Plan your clearance and any surface mounted hardware on that face accordingly.
2) How much of a gap will the 229WHSS door bottom close under my door?
Maximum drop is 7/8 inch. That is the most the seal will travel down when the door closes, so measure the gap between the door bottom and the finished floor or threshold with the door shut. If your undercut exceeds 7/8 inch after accounting for the housing height, the brush will not reach the floor and you need a different bottom or a raised threshold.
3) Will a brush seal automatic door bottom work over carpet with no threshold?
That is exactly where the brush version earns its keep. NGP recommends the nylon brush for carpet applications where no threshold is provided, because the bristles ride over pile and irregular flooring without binding the way a solid vinyl or neoprene insert can. Over a hard floor with a flat threshold, a solid insert type gives a tighter air seal.
4) What else could I use instead of the NGP 229WHSS surface mount automatic door bottom?
The Pemko SA Series 36 inch surface mount automatic door bottom is the closest alternative we carry, also a surface applied automatic door bottom, and it uses a GREENGUARD Gold certified Eco-V insert rather than a brush. Choose the Eco-V insert for a tighter seal over hard flooring and a green building spec, and the NGP 229WHSS brush where the door passes over carpet with no threshold, or where a Type 304 stainless housing is required.
5) Do I need an automatic door bottom, or will a door bottom sweep do the job?
They solve the same problem two ways. The NGP 229WHSS is an automatic door bottom: it mounts on the push side and drops a polyamide brush seal up to 7/8 inch when the door closes, so nothing drags on the floor while the door swings. A fixed sweep such as the Pemko 345 Series door bottom sweep with PemkoPrene insert stays in contact with the floor at all times. If the opening has carpet, a raised finish floor, or an uneven threshold that a fixed sweep would catch on, the automatic unit is the one that suits; where the floor is flat and a constant seal is acceptable, the fixed sweep is the simpler assembly.
6) What is the closest equivalent to the NGP 229WHSS automatic door bottom from another manufacturer?
The Pemko SA Series surface mount automatic door bottom is the nearest peer - it is also an automatic door bottom that mounts to the face of the door rather than being mortised in, and the SA3-36 is supplied in a 36 inch length, matching the shortest of the three NGP 229WHSS lengths of 36, 48 and 60 inches. The difference is in the seal material: the 229WHSS uses a synthetic polyamide brush in a Type 304 stainless steel housing with a 7/8 inch maximum drop, while the Pemko SA Series uses a GREENGUARD Gold certified Eco-V insert.
7) Is a stainless steel automatic door bottom worth it over aluminum for a kitchen or wash-down area?
The 229WHSS housing is Type 304 stainless with a brushed #4 finish (US32D, 630), which is the reason to specify it in kitchens, laundries, healthcare and other areas that get cleaned aggressively or see moisture. The polyamide brush adds abrasion resistance, memory retention and moisture resistance. If the opening is a dry office corridor, you are paying for corrosion performance you will not use.
8) Can this door bottom handle a boiler room or freezer door?
Its stated operating range is -70 F to 425 F, which covers both cold storage vestibules and high heat mechanical or oven areas. The stainless housing and polyamide brush are what carry that range.
9) Do I need to order end caps separately for the NGP 229WHSS?
No. Standard end caps ship with the unit, so the only decision at order time is the length: 36, 48 or 60 inches, cut down in the field if the opening is narrower.
10) I need to shed rainwater at an exterior door bottom - is the 229WHSS the right part?
The NGP 229WHSS is an interior-style automatic door bottom with a polyamide brush seal and does not carry a rain drip. For an exterior opening where runoff needs to be thrown clear of the sill, the Pemko 345 Series door bottom sweep pairs a rain drip with a PemkoPrene insert in one assembly. If you want the automatic drop action at an exterior door, the 229WHSS can still be used with a separate drip cap above it.
11) Which automatic door bottom holds up better in a high heat or wash down area?
The NGP 229WHSS is the more environmentally tolerant of the two automatic units: its Type 304 stainless steel housing and synthetic polyamide brush are rated from -70 F to 425 F, and the brush offers moisture resistance and abrasion resistance. The Pemko SA Series surface mount automatic door bottom uses an Eco-V insert and is the choice where GREENGUARD Gold certification is the governing requirement, such as a LEED indoor air quality credit. Pick by which constraint the job is actually written against.
12) Does the NGP 229WHSS meet RoHS and REACH requirements for a government or institutional spec?
Yes, the materials are stated as REACH and RoHS compliant, which is what usually gets asked on government, healthcare and education submittals. It is a commercial grade product and is used in office buildings, schools, hospitals, retail, industrial and warehouse facilities, multi-tenant residential and municipal buildings.
13) Will the brushed stainless finish on this door bottom match my 630 lever and hinges?
It will. The 229WHSS carries a brushed #4 finish, designated US32D / 630, the same satin stainless designation used on most commercial levers, exit devices and hinges, so it reads consistently across a floor of openings being standardized.
How fast can I get the NGP 229WHSS -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 229WHSS -36 come with a warranty?
Absolutely. The NGP 229WHSS -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 229WHSS -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 229WHSS -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.
!