Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

3-1/2-ft x 1-1/2-in x 1/2-in White Foam Air conditioner Weatherstrip

Ratings & Reviews for Frost King 3-1/2-ft x 1-1/2-in x 1/2-in White Foam Air conditioner Weatherstrip

4.4
199
Review
 4.4 out of 5
201 Reviews


78% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The foam weatherstrip is generally effective for insulating and sealing window air conditioning units. Many found it easy to cut and fit, helping fill gaps and block out insects. However, some noted it was too short or lacked adhesive backing to stay in place. While the product works well for its intended purpose, improvements in size and adhesion could make it more useful.

Customer review summary generated by AI, including incentivized reviews.
201 Customer Reviews

Very secure

Would Recommend

Was just enough for ac

May 11, 2026
Verified Purchaser
Was this Review Helpful ?

Good for across the top of a window unit a/c

Would Recommend

Soft enough to squish down pretty easily but no too soft

May 2, 2026
Verified Purchaser
Was this Review Helpful ?

Simple and efficient

Would Recommend

Easy to use

May 1, 2026
Verified Purchaser
Was this Review Helpful ?

GREAT for HVAC and window units!

Would Recommend

Frost King Air Foam is an excellent choice for HVAC systems, especially window units. It seals in the cold air effortlessly, helping your space stay comfortable while improving efficiency. On top of that, it’s affordably priced and delivers outstanding performance.

April 30, 2026
Verified Purchaser
Was this Review Helpful ?

Durable

Would Recommend

This product was extremely durable

April 24, 2026
Verified Purchaser
Was this Review Helpful ?

Good insulation

Does what it needs to do. Fits well and keeps the bugs away

April 23, 2026
Verified Purchaser
Was this Review Helpful ?

It's decent and does the job

Would Recommend

It worked for the window to keep out excess heat

April 23, 2026
Verified Purchaser
Was this Review Helpful ?

Check your AC unit before buying. Did not need it.

Would Not Recommend

Not needed for my project but it could've been thicker.

April 18, 2026
Verified Purchaser
Was this Review Helpful ?

Would Not Recommend

I never picked this up and it says pick up complete and I've been charged. I spoke to the associate and cancelled, and now it says pi k up complete.

April 17, 2026
Was this Review Helpful ?

Buy multiples!

Would Not Recommend

I wish this was thicker and longer. I had to buy several for each A/C unit I have and layer them to fill in the gaps

April 16, 2026
Verified Purchaser
Was this Review Helpful ?