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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40 Feet Rubber Weather Stripping Door Seal Strip, Self-Adhesive Backing D-Shape Door Weatherstripping for Door Frame Insulation Large Gap, Easy Cut to Size(Black)

40 Feet Rubber Weather Stripping Door Seal Strip, Self-Adhesive Backing D-Shape Door Weatherstripping for Door Frame Insulation Large Gap, Easy Cut to Size(Black)

Product ID: 429773983

Details

Brand
Fingwerk
Color
Black
Item Thickness
0.23 inches
Material
Rubber Vinyl
Product Dimensions
480"L x 0.35"W

📏40 feet length for full coverage

❄️Flexible rubber resists extreme temps

🛠️Self-adhesive backing for easy install

33884CFA

Duties & taxes included

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚪 Seal the deal on comfort and savings—don’t let your home miss out!

VERSATILE USE CASES - Ideal for doors, windows, cabinets, and more—upgrade your entire home’s insulation
ALL DAY COMFORT SEAL - Locks out drafts, dust, and noise for a cozy, quiet space
EFFORTLESS INSTALLATION - Peel-and-stick adhesive ensures a firm hold without tools or hassle
PRECISION FIT EVERY TIME - Easily cut and shape to perfectly seal gaps from 2.5 to 5.5 mm
DURABILITY MEETS FLEXIBILITY - Rubber material won’t crack or freeze, even in harsh weather

Fingwerk’s 40-foot self-adhesive rubber weather stripping offers a durable, flexible D-shaped seal designed to insulate door and window gaps from 2.5 to 5.5 mm. Easy to cut and install, it prevents drafts, dust, noise, and temperature loss, enhancing home comfort and energy efficiency year-round.

Specifications

ASIN	B09TRBV7G8
Best Sellers Rank	#4,087 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #27 in Weather Stripping
Brand Name	Fingwerk
Color	Black
Customer Reviews	4.2 4.2 out of 5 stars (2,776)
Item Dimensions L x W	480"L x 0.35"W
Item Thickness	0.23 inches
Manufacturer	Fingwerk
Material Type	Rubber, Vinyl
Number of Items	1
Recommended Uses For Product	Window,Door
Unit Count	40 Feet

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TrustScore 4.5 | 7,300+ reviews

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