Pemko 303 Series Perimeter Wea...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$110.90
$85.37
Pemko 303 Weatherstrip 36in x 84in x 84in, Vinyl Insert, Black Suede Powder Coat BSP

Pemko 303 Series Perimeter Weatherstrip with Vinyl Insert 36" x 84" Black Suede Powder Coat

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Model: 303BSPV3684
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$110.90
$85.37
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Pemko 303 Series Perimeter Weatherstrip with Vinyl Insert 36"; x 84"; Black Suede Powder Coat

Professional Perimeter Sealing Solution

The Pemko 303 Series standard perimeter gasket delivers reliable weatherproofing with durable aluminum base and vinyl insert construction. This 36"; x 84"; weatherstrip features 1/4"; width and 1/4"; height dimensions with black suede powder coat finish for superior corrosion resistance. Designed for side-of-frame mounting with screw application, it accommodates lengths from 24"; minimum to 185"; maximum for versatile installation requirements.

Professional Features & Benefits

  • Precise Dimensions: 36"; x 84"; configuration with 1/4"; width and 1/4"; height profile for consistent sealing performance across commercial applications.
  • Aluminum Base Construction: Durable aluminum substrate with black suede powder coat finish provides long-lasting corrosion resistance in demanding environments.
  • Adjustable Mounting System: Punched on 6"; centers with slotted holes for precise positioning and gap adjustment during installation.
  • Versatile Sealing Capability: Can seal gaps up to the depth of its seal and functions as both meeting stile and perimeter gasket for multiple applications.
  • Multiple Installation Options: Available with self-adhesive two-sided tape (TST) and TEK screws for flexible mounting requirements.
  • Modular Version Available: PemKonnect modular version (303AS3684-M) with silicone insert folds for compact shipping and reduced freight costs.
  • Professional Certifications: PemKonnect modular version is UL listed and BHMA certified for code compliance applications.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Door Trim and Accessories
  • Product Dimension: W: 1/4", H: 1/4";
  • Product Group: Door Trim and Accessories
  • Product Length: 84";
  • Product Model: 303
  • Product Subgroup: Astragals, Gaskets and Weatherstripping
  • Product Substrate: Aluminum
  • Product Type: Weatherstripping
  • Subcategory: Door Sweeps

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 Pemko Quality?

Pemko 303 Series weatherstripping delivers professional-grade sealing performance with durable aluminum construction and precision-punched mounting holes on 6"; centers. The modular PemKonnect version offers UL listing and BHMA certification for demanding commercial applications where reliable perimeter sealing and code compliance are essential.

Product Specs

Subcategory:
Door Sweeps
Product Group:
Door Trim and Accessories
Product Subgroup:
Astragals, Gaskets and Weatherstripping
Product Type:
Weatherstripping
Product Model:
303
Product Length:
84"
Product Dimension:
W: 1/4", H: 1/4"
Product Substrate:
Aluminum
Product Category:
Door Trim and Accessories
Department:
Door Hardware

Pemko 303BSPV3684 – Frequently Asked Questions

1) Will the Pemko 303 perimeter weatherstrip work on a 36 inch by 84 inch door opening?
That is exactly the opening it is cut for. The 303 gasket ships in an 84 inch length for the jamb legs, and it mounts to the side of the frame with screws. It is punched on 6 inch centers with slotted holes, so you can shift the aluminum retainer in or out to close up an uneven gap before you tighten it down. If your frame legs run longer or shorter, the 303 profile is made in lengths from 24 inches up to 185 inches.
2) How much of a gap can Pemko 303 weatherstripping actually seal on a warped or out of square door?
The vinyl insert seals gaps up to the depth of the seal itself, and the 303 carries a 1/4 inch by 1/4 inch profile, so you are working with a shallow bulb, not a deep one. The real adjustment comes from the slotted mounting holes on 6 inch centers: on a door that has drifted, set the retainer closer to the stop where the gap has opened up and back it off where the door is tight. If a leg of your opening is out by considerably more than that 1/4 inch, you want an adjustable jamb seal rather than a fixed-position gasket.
3) Can the Pemko 303 gasket be used on the meeting stile of a pair of doors, or is it only for the jambs?
Both. The 303 functions as a meeting stile gasket as well as a perimeter gasket, so on a pair of doors you can run it up the inactive leaf where the two doors come together and use the same profile around the frame perimeter. That keeps one part number and one finish across the whole opening instead of mixing a separate astragal seal into the order.
4) I need a fire or smoke rated perimeter seal for a rated opening. Is the Pemko 303 the right one?
Not this configuration. The 303 with the vinyl insert is a weather and light seal. The listing part that carries UL listing and BHMA certification is the PemKonnect modular version, 303AS3684-M, which uses a silicone insert instead of vinyl. If your job is smoke and draft control on a rated door, the Hager 862S with a neoprene insert is built for smoke and draft control, and the Hager 726S is a press-on smoke seal for openings where you cannot get screws into the frame.
5) What is the closest equivalent to a Pemko 303 perimeter weatherstrip if I need an adjustable jamb seal in 84 inch length?
The Hager 864S is the nearest peer: an 84 inch adjustable jamb weatherstrip in clear anodized aluminum with a neoprene insert. The Pemko 303 is also an 84 inch aluminum-base perimeter gasket, but it carries a vinyl insert and comes in a black suede powder coat finish. Both mount to the frame, so the decision comes down to insert material and finish: neoprene and clear anodized on the Hager 864S, vinyl and black on the Pemko 303. A property manager matching the other frames in a corridor will usually pick whichever finish is already on the openings.
6) I need a smoke and draft seal rather than a general weatherstrip - what should I use instead of a Pemko 303?
For smoke and draft control, look at the Hager 862S, a 48 inch weatherstrip with a neoprene insert built for smoke and draft control, or the Hager 726S smoke seal weatherstrip with press-on installation and a charcoal finish. The Pemko 303 is a standard perimeter gasket with a vinyl insert, applied to the side of the frame with screws punched on 6 inch centers. If your drawing calls out a smoke seal on a rated opening, the 862S or 726S is the part written for that duty; the 303 is the part for general perimeter sealing and meeting stile use.
7) Does Pemko 303 weatherstrip screw on, or can it be taped to the frame?
Screws are the standard method, and the aluminum retainer is punched on 6 inch centers for them. The 303 is also offered with self-adhesive two-sided tape (TST) and with TEK screws, which is what you want on a hollow metal frame where you would rather drill and self-tap than pilot and machine screw. On a wood or aluminum frame the punched holes and standard fasteners are the straightforward route.
8) What else could I use instead of a Pemko 303 vinyl perimeter gasket on a commercial jamb?
Depends on what the opening is fighting. For a door that sees heavy traffic and slams, a nylon brush seal like the Cal-Royal BW-302, which uses an extruded aluminum retainer the same way, wears better against constant contact than a vinyl bulb. If your frame legs are out of square enough that fixed mounting will not close the gap, the Hager 864S is an adjustable jamb weatherstrip in clear anodized aluminum with a neoprene insert, in an 84 inch length that matches the 303. And if the finish has to be dark to disappear against a bronze or black frame, the 303 in black suede powder coat is the one that gets you there; the 864S is clear anodized.
9) How many pieces of Pemko 303 do I need to gasket one single door opening?
A perimeter set is three legs: two jambs and the head. The 84 inch length covers a standard 6 foot 8 inch door leg with a little to cut off, and the head piece gets cut down from a length to suit your 36 inch opening. The profile is made from 24 inches up to 185 inches, so for a run of openings you can order longer stock and cut, or take the 84 inch pieces and trim. Buy by the leg, not by the door, and count the head separately.
10) Is a nylon brush weatherstrip a substitute for the Pemko 303 vinyl insert gasket?
They are different sealing methods. The Cal-Royal BW-302 is a nylon brush weatherstrip with an extruded aluminum seal retainer, so the sealing element is brush filament held in an aluminum retainer. The Pemko 303 uses a vinyl insert in an aluminum base and seals gaps up to the depth of its seal, functioning as both a meeting stile and a perimeter gasket. Brush works where the door or gate face sweeps across the seal and some air passage is acceptable; a compression vinyl insert is what you want where the stop makes solid contact. Do not swap one for the other without confirming which the opening was detailed for.
11) Which option installs without drilling if I do not want to screw a weatherstrip into an existing frame?
The Hager 726S smoke seal weatherstrip uses press-on installation, so it goes onto the frame without fasteners. The Pemko 303 is designed for side-of-frame mounting with screw application, punched on 6 inch centers with slotted holes for gap adjustment, and is also offered with self-adhesive two-sided tape and TEK screws. If you are working on frames you would rather not drill - occupied units, or a hollow metal frame you cannot get behind - the press-on 726S or the taped version of the 303 is the way in. The screw-applied 303 is what gives you the slotted adjustment for tuning the gap.
12) I need a 48 inch weatherstrip for a head jamb - what are my options besides the Pemko 303?
The Hager 862S is a 48 inch weatherstrip with a neoprene insert for smoke and draft control. The Pemko 303 accommodates lengths from a 24 inch minimum to a 185 inch maximum, so a 48 inch head can be covered by the 303 as well - it is cut and punched aluminum with a vinyl insert. Choose on the insert and the duty: neoprene and smoke and draft control on the 862S, vinyl compression seal on the 303, which doubles as a meeting stile gasket where you need one on a pair.
13) Is the black finish on Pemko 303 weatherstripping painted, and will it hold up outside?
The base is extruded aluminum with a black suede powder coat, not a wet paint or a dyed anodize. Powder coat on aluminum is what gives it corrosion resistance on exterior openings and loading dock doors where a mill or painted steel retainer would chalk. The insert running in that retainer is vinyl.
14) Will Pemko 303 weatherstripping interfere with the door closing or with the latch?
The 303 is a 1/4 inch by 1/4 inch profile mounted to the side of the frame, so it sits against the stop face rather than in the latch path. The slotted holes are what keep it out of trouble: if the door is compressing the seal hard enough to push back against the latch, back the retainer off the stop a fraction and re-tighten before you start adjusting the closer. On a frame where the gap varies top to bottom, set each 6 inch fastener point independently rather than running the whole leg to one line.
15) For a facility standardizing on one frame finish, how do the weatherstrip finish choices compare?
The Pemko 303 comes in a black suede powder coat over its aluminum base, which reads dark against a painted or bronze frame. The Hager 864S is clear anodized aluminum, which reads as bare mill aluminum and blends with aluminum storefront and clear anodized frames. The Hager 726S carries a charcoal finish. If you are writing a single spec across a building, pick the seal whose finish matches the frames you already have rather than mixing dark powder coat and clear anodized down the same corridor.
How fast can I get the Pemko 303BSPV3684 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 303BSPV3684 come with a warranty?
Absolutely. The Pemko 303BSPV3684 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 303BSPV3684?
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
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