Pemko Q Series Kerf-In Weather...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$25.90
$21.88
Pemko Q Series Kerf-In Weatherstrip with Extended Flange 1-1/4 inch x 3/16 inch Fire Rated - product profile view

Pemko Q Series Kerf-In Weatherstrip with Extended Flange - 1-1/4" x 3/16" Fire Rated

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Model: Q106D121

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

$25.90
$21.88
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Pemko Q Series Kerf-In Weatherstrip with Extended Flange - Fire Rated

The Pemko Q Series Kerf-In Weatherstrip delivers professional-grade weather sealing for commercial door frames. Soft cell foam construction is enclosed by an embossed, tear-resistant, low-friction, UV-stable polyethylene cover with a rigid PVC insert and extended flange. Installs directly into the door frame kerf - no nails, no adhesives. UL10C Positive Pressure and Underwriters Laboratory 4L10 fire-rated listings make it code-compliant for fire-rated door assemblies. Available in multiple model lengths to fit standard and oversized door frames.

Features & Benefits

  • Extended Flange with Rigid PVC Insert: Locks securely into the kerf slot for consistent compression and a reliable air and weather seal.
  • Fire Rated: UL10C Positive Pressure and Underwriters Laboratory 4L10 listed - meets code requirements for fire-rated door assemblies.
  • Durable Cover: Embossed, tear-resistant, UV-stable polyethylene cover withstands repeated door cycles and exterior exposure.
  • Low-Friction Surface: Smooth polyethylene cover allows clean door operation without drag or binding.
  • Tool-Free Installation: Kerf-in design snaps into the door frame slot - no fasteners or adhesive required.
  • Multiple Length Options: Models available from 85" to 121" to accommodate a range of door frame heights.

Technical Specifications

  • Width: 1-1/4"
  • Height: 3/16"
  • Construction: Soft cell foam core, polyethylene cover, rigid PVC insert
  • Installation Method: Kerf-in (no nails or adhesive)
  • Fire Rating: UL10C Positive Pressure; Underwriters Laboratory 4L10
  • Application: Commercial door frames - head and jamb
  • Use: Commercial

Typical Applications

  • Fire-rated door assemblies in commercial and institutional buildings
  • Office buildings, healthcare facilities, educational institutions
  • Government, municipal, and multi-family residential properties
  • Industrial and warehouse facilities requiring code-compliant door sealing

Product Specs

Product Group:
Door Trim and Accessories
Product Subgroup:
Astragals, Gaskets and Weatherstripping
Product Type:
Weatherstripping
Subcategory:
Gaskets & Weatherstripping
Commercial/Residential:
Commercial
UL Listing Type:
Fire Rated UL10C Positive Pressure, Underwriters Laboratory 4L10
Product Model:
Q Series
Product Dimension:
W: 1-1/4", H: 3/16"
Product Category:
Door Trim and Accessories
Product Substrate:
Silicone
Department:
Door Hardware
Series:
Q Series

Pemko Q106D121 – Frequently Asked Questions

1) Is Pemko Q Series weatherstrip approved for a fire rated door assembly?
Yes. The Q Series carries a UL10C Positive Pressure fire rated listing plus Underwriters Laboratory 4L10, so it can go on fire-rated openings in commercial and institutional buildings without breaking the assembly's listing. That is the reason to specify it over a plain weather seal.
2) What size kerf does the Pemko Q Series 1-1/4 x 3/16 weatherstrip need?
The seal measures 1-1/4 inches wide by 3/16 inch high, and that 3/16 inch dimension is the part that goes into the frame kerf. Standard commercial hollow metal and wood frames are kerfed at 3/16 inch, so it drops into a factory-kerfed frame. Measure the slot before ordering if the frame was field-kerfed.
3) What can I use instead of Pemko Q Series kerf-in weatherstrip if the frame has no kerf slot?
The Pemko Q Series seats in a kerf cut into the door frame and holds with a rigid PVC insert on an extended flange, so it needs that slot to install. On a frame with no kerf, a surface-applied jamb seal is the alternate approach: the Hager 864S is an 84 inch clear anodized aluminum adjustable jamb weatherstrip with a neoprene insert, which mounts to the face of the frame and lets you set the seal position after the door is hung, and the Hager 726S is a press-on smoke seal in a charcoal finish that adheres to the stop without machining. Both change the install from a snap-in fit to a fastened or adhered one, so confirm the stop face is wide enough and clean before ordering.
4) Is the Hager 726S smoke seal a direct replacement for a Pemko Q Series kerf-in gasket?
They are not interchangeable at the frame. The Hager 726S is a press-on smoke seal weatherstrip in a charcoal finish, meaning it bonds to the frame face or stop. The Pemko Q Series is a kerf-in gasket, 1-1/4 inch wide by 3/16 inch high, that snaps into the frame kerf with no fasteners or adhesive and carries a UL10C Positive Pressure and Underwriters Laboratory 4L10 fire rated listing. If the existing gasket pulls out of a slot in the frame, you are replacing a kerf product and the press-on will not seat in that slot; if it peels off a flat surface, you are replacing a press-on.
5) What is the difference between Pemko Q Series kerf weatherstrip and Hager 862S or 864S jamb weatherstrip?
Different mounting entirely. The Q Series is a foam-and-polyethylene seal that snaps into a frame kerf with no fasteners. The Hager 864S is a clear anodized aluminum adjustable jamb weatherstrip with a neoprene insert, and the 862S is a 48 inch neoprene-insert strip for smoke and draft control - both are retainer-style strips rather than kerf-in. Pick by what the frame already has: kerfed frame, Q Series; bare frame face, one of the aluminum retainer strips.
6) Difference between a foam kerf gasket and a nylon brush weatherstrip for a commercial opening?
The Pemko Q Series uses a soft cell foam core under an embossed polyethylene cover and compresses against the door face when it closes, which is what makes it an air and weather seal at the head and jambs. The Cal-Royal BW-302 is a nylon brush weatherstrip carried in an extruded aluminum seal retainer, and a brush pile sweeps rather than compresses, so it stays in contact through motion instead of only at the closed position. That makes the brush type the one contractors reach for where the leaf has to pass along the seal, and the compression gasket the one used where a closed door needs to seal against the stop.
7) Neoprene insert weatherstrip versus the Pemko Q Series for smoke and draft control?
The Hager 862S is a 48 inch weatherstrip with a neoprene insert described for smoke and draft control, and the Hager 864S carries a neoprene insert in a clear anodized aluminum adjustable jamb housing. Both put a solid elastomer bulb in a rigid carrier. The Pemko Q Series takes the opposite approach for the same joint: a soft cell foam core in a tear-resistant, UV-stable polyethylene cover with a rigid PVC insert, sized 1-1/4 inch by 3/16 inch, and it carries a UL10C Positive Pressure and Underwriters Laboratory 4L10 fire rated listing. For a fire-rated assembly, match the seal to what the door and frame labels call for and keep the listed product on the opening.
8) Which weatherstrip installs without tools or drilling on a retrofit?
Two of the common options avoid fasteners. The Pemko Q Series is a kerf-in gasket that snaps into the frame slot with no nails and no adhesive, so a maintenance tech can pull the old piece and push in the new one, and it is offered in lengths from 85 inches to 121 inches. The Hager 726S is a press-on smoke seal in charcoal that adheres to the frame without machining. By contrast, the Hager 864S adjustable jamb weatherstrip and the Cal-Royal BW-302 both use an aluminum carrier that gets mounted to the frame. For a fleet of doors that already have kerfed frames, the kerf-in gasket is the fastest swap.
9) Will kerf weatherstrip make a fire door hard to close or drag on the frame?
The cover is embossed, low-friction polyethylene over a soft cell foam core, so the door face slides across it rather than binding. That matters on closer-controlled fire doors where the closer has to pull the door fully into the latch against seal compression.
10) Can Pemko Q Series weatherstrip be used on an exterior commercial door?
Yes. The polyethylene cover is UV-stable and tear-resistant, which is what lets it sit in an exterior opening, and the product is rated for commercial use. The foam core compresses against the door face to seal air and weather.
How fast can I get the Pemko Q106D121 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 Pemko Q106D121 come with a warranty?
Absolutely. The Pemko Q106D121 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 Pemko Q106D121?
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 Pemko Q106D121 from ZenSupply?
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