What size/width slot is required for pushing the plastic edge into?

Not sure what width you are asking about. If you are talking about the channel it goes into it is pretty much standard size which is a groove you press the flange into. The only width/gap you need to make sure of is the door to the frame which is about 5/8. Close your door and measure the spacing. I used this to replace the original of 37 years old and it fit like a charm. Very satisfied, looks good and will stop any air leaks. Hope this helps.

The groove you press the flange into should be installed first, because regular doors do not have it, right?

Actually our door had a groove and we just replaced the old stripping that the cats had shredded. Easy and worked great

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6.8M Rubber Door Seal Strip Adhesive Back D Shape Door Seal for Door Frame Insulation Large Gap Easy Cut to Size (Black)

6.8M Rubber Door Seal Strip Adhesive Back D Shape Door Seal for Door Frame Insulation Large Gap Easy Cut to Size (Black)

Product ID: 666174618

Details

Brand
Fingwerk
Colour
Black D-shape
Item Thickness
0.23 Inches
Material
Rubber
Recommended Uses For Product
Door cabinets

📏6.8m length for full coverage

❄️Flexible rubber resists extreme temps

🛠️Self-adhesive for easy install

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Description

🚪 Seal the deal on comfort and style — don’t let gaps steal your vibe!

ALL WEATHER DURABILITY - Flexible rubber won’t crack or freeze, maintaining insulation year-round
CUSTOM FIT FOR ANY FRAME - Easily cut and bend to shape, adapting seamlessly to doors, windows, and more
EFFORTLESS DIY INSTALLATION - Peel-and-stick adhesive backing ensures a firm hold without tools or mess
SEAL EVERY GAP WITH PRECISION - 6.8 meters long and 9mm wide, fits gaps from 2.5 to 5.5mm perfectly
MULTI PURPOSE INSULATION POWER - Blocks wind, dust, noise, and cold to keep your space cozy and quiet

This 6.8-meter black D-shaped rubber door seal strip from Fingwerk offers a versatile, self-adhesive solution to insulate doors and windows. Designed to fit gaps between 2.5 and 5.5mm, it’s made from flexible, weather-resistant rubber that prevents drafts, noise, dust, and temperature loss. Easy to cut and install, it’s a must-have upgrade for any modern home or office seeking energy efficiency and quiet comfort.

Specifications

ASIN	B0BLTNL21B
Best Sellers Rank	#271,507 in Home Improvement ( See Top 100 in Home Improvement ) #2,485 in Stops
Brand Name	Fingwerk
Colour	Black D-shape
Customer Reviews	4.0 4.0 out of 5 stars (91)
Included Components	3M Tape
Item Thickness	0.23 Inches
Item Type Name	Rubber stripping
Manufacturer	Fingwerk
Material Type	Rubber
Model Number	FD20
Number of Items	1
Number of Packs	1
Recommended Uses For Product	Door, Electrical cabinets, Window
Unit Count	1.0 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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B/.71

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Panama.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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