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The Litaibai 40 ft Kerf Weather Stripping Door Seal is a premium, press-in solution designed exclusively for doors with kerf slots. Made from durable PU foam and a rigid PVC flange, it provides a long-lasting, flexible seal that blocks drafts, noise, and moisture. With no adhesive required, installation is quick and clean, making it perfect for energy-conscious homeowners seeking an efficient, professional-grade weatherproofing upgrade.













| ASIN | B0BGR3NXLV |
| Best Sellers Rank | #915 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4 in Weather Stripping |
| Brand | Litaibai |
| Brand Name | Litaibai |
| Color | White |
| Customer Reviews | 4.6 out of 5 stars 4,261 Reviews |
| Included Components | Bag |
| Item Thickness | 4 millimeters |
| Manufacturer | Litaibai Store |
| Manufacturer Part Number | MFT-B-40 |
| Material | Polyurethane (PU) Foam |
| Material Type | Polyurethane (PU) Foam |
| Model Number | MFT-B-40 |
| Number of Items | 1 |
| Recommended Uses For Product | door |
| Unit Count | 40 Feet |
J**Y
Worked great and no more drafts coming in
This 40-foot kerf weather stripping was exactly what I needed to replace the worn-out seal around my exterior door. Installation was simple since it presses right into the existing groove, and once installed it did a great job reducing drafts and sealing the door. The material feels durable and compresses well. Even though it worked great, I think it could still be just a little thinner for an even easier door close on my setup. That said, it seals much better than my old weather stripping and has noticeably improved the fit of the door. With plenty of length for multiple projects and solid quality, it’s an excellent value and I’d definitely recommend it.
R**E
Great Valve
Great product easy to install and works great.. Enough product to reseal (2) 32"X60" doors.
S**C
Work well
This fit perfectly on my door and keeps the heat out fairly well. I do feel a very small amount of heat coming through but I live in AZ so I think these work well. Very easy to install and seem to be made well.
J**A
Pretty good
Worked really well and is thicker that what came with our professionally installed door. Only down side is we have to make sure the door is fully closed. Good value for the price 👌
J**Y
Easy peasy
Exactly what I needed for my front and back door. It’s nice and thick and durable. It was super easy to install. I recommend cutting and installing for the sides of the door frame first then cut for the top of the door frame to ensure full insulation. No measuring tape needed. I just removed one of the side weather strips and the top strip as my reference to cut. As a first timer this took only several minutes to remove the older strip, cut the new strips and install.
S**7
Good product. Works great
Good stuff. Better than my original door seal.
M**Y
That will do pig, that will do.
Easy to install and block the weather from coming in.
R**N
Construction
The foam core need to be thicker and more rigid.
R**H
Perfect
Exactly what I wanted fast delivery
C**W
weather stripping
you can get 2 standard 36" doors out of a roll. its easy to install and sealed the doors really well
F**L
Its good
Fits good, isolates good
N**N
العزل ممتاز جدا ولكن
العيب الوحيد في المنتج حجمة كبير في اطراف الباب اكثر من ٧مل فلذلك يجب اخذ القياسات بحذر او ستواجة صعوبة في اغلاق الباب ولكن كجودة روعة مابعده شي..
L**Z
Seals gaps of 6mm not up to 13mm as claimed
Bought as it states that it can seal up to 13mm gap. That would be ideal for me. In reality it can nearly do 6mm. Unfortunately I've already cut it. Waste of money and long delivery time.
Trustpilot
5 days ago
4 days ago