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Frost King AC Side Panel Insulation Kit vs GCGOODS Window AC Insulated Foam Panels

Both kits close the gap beside a window air conditioner, but they do it differently. The Frost King uses cuttable urethane foam with self-stick side channels, so it fits odd gaps and damps noise and vibration; owners rate it well at 4 of 5 from 279 ratings. The GCGOODS adds a top seal strip and a thicker 1.5-inch panel with a faux-leather face, which suits a tidy indoor look and units up to 22000 BTU. Pick Frost King for flexible fit and sound damping; pick GCGOODS for a cleaner finish and a top gap seal.

  • Choose the Frost King if you want cuttable foam that fits an uneven gap and quiets rattles.
  • Choose the GCGOODS if you want a thicker panel with a top seal strip and a neater indoor look.

Prices

  • Frost King AC Side Panel Insulation Kit: $19.87 at The Home Depot (last seen Nov 10)
  • GCGOODS Window AC Insulated Foam Panels: $25.82 at Amazon (last seen Nov 10)
  • Difference: the Frost King AC Side Panel Insulation Kit is $5.95 cheaper than the GCGOODS Window AC Insulated Foam Panels at the latest prices (Nov 10)
Frost King
Frost King Air Conditioner Side Panel Insulation Kit

Frost King AC Side Panel Insulation Kit

Frost King Air Conditioner Side Panel Insulation Kit

4(279 ratings)
$19.87at The Home DepotChecked Nov 10
See all prices and details
Visit The Home Depot
Pros
  • Cuttable foam handles uneven gaps
  • Self-stick channels simplify install
  • Damps noise and vibration
  • Strong owner rating
Cons
  • No top seal strip
  • Grey foam looks plain
  • Thinner than the GCGOODS panel
GCGOODS
GCGOODS Window Air Conditioner Insulated Foam Panels, All Season Surround Insulation Side Panel with Top Seal Strip for Window AC Unit Indoor, White

GCGOODS Window AC Insulated Foam Panels

GCGOODS Window Air Conditioner Insulated Foam Panels, All Season Surround Insulation Side Panel with Top Seal Strip for Window AC Unit Indoor, White

$25.82at AmazonChecked Nov 10
See all prices and details
Visit Amazon

As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • Top seal strip closes the upper gap
  • Thicker 1.5-inch panel
  • White faux-leather face looks tidy
  • Stated range covers 5000 to 22000 BTU
Cons
  • Stiffer face is harder to trim
  • No self-stick channels listed
  • Faux leather can crease or peel

What separates them

Frost King AC Side Panel Insulation KitGCGOODS Window AC Insulated Foam Panels
MaterialUrethane foam, greyFaux leather over foam, white
Thickness7/8 inch1.5 inch
Top gap sealSide panels onlyIncludes a 39-inch top seal strip
TrimmingEasy to cut to fitRigid faux-leather face, less forgiving to cut
Noise and vibrationThick foam damps rattle and humThicker pad, but a stiffer face
MountingSelf-stick side channels includedPanels plus seal strip, no channels listed
Unit rangeFits most window unitsStated for 5000 to 22000 BTU
Look indoorsGrey foam, utilitarianWhite faux leather, cleaner finish

Price history

  • Frost King AC Side Panel Insulation Kit: lowest $19.87 on Nov 10 at The Home Depot.
  • GCGOODS Window AC Insulated Foam Panels: lowest $25.82 on Nov 10 at Amazon.

Prices at every store

Frost King AC Side Panel Insulation Kit

  • The Home DepotNew

    Availability unknown

    $19.87Free shippingChecked Nov 10
    Visit The Home Depot
Prices and history →

GCGOODS Window AC Insulated Foam Panels

  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $25.82Checked Nov 10
    Visit Amazon
Prices and history →

Specs compared

SpecFrost King AC Side Panel Insulation KitGCGOODS Window AC Insulated Foam Panels
MaterialUrethane foamFaux Leather
Panel dimensions18" x 9" x 7/8"—
Panel count2 Panels—
ColorGrey—
Included channelsSelf-stick side channels included in package—
Item thickness—1.5 inches
Product Dimensions—99.1L x 3.8W centimetres
Number of Packs—2
Side panel size—17" height x 9" width
Top seal strip size—39" L x 1.5" W
AC unit compatibility—5000 to 22000 btu

What reviewers say

Frost King AC Side Panel Insulation Kit

  • 4 / 5279 ratings

Owners mostly use it to quiet a noisy window unit and cut drafts, and many report a real drop in sound. Complaints center on the adhesive and on foam that tears or fits loosely on some units.

What people mention
  • NoisePraisedOwners say compressor and fan noise drops after fitting the foam panels.
  • DraftsPraisedReviewers report less cold air leaking around the sides of the unit.
  • InstallationPraisedBuyers find it easy to cut and stick on with no tools.
  • AdhesiveCriticisedSome say the self-stick channels peel off or don't hold well.

GCGOODS Window AC Insulated Foam Panels

Buyers who mention these panels mostly describe a snugger fit and less draft and noise around their window unit. Some note the foam is firmer and thicker than expected, which helps the seal but makes trimming necessary on tighter frames.

What people mention
  • InsulationPraisedOwners say the thick foam noticeably cuts drafts and heat transfer around the unit.
  • NoisePraisedSeveral report less street noise and rattling once the panels are in place.
  • FitMixedWorks well on standard double-hung windows but needs trimming on narrow frames.
  • BuildMixedThe faux leather wrap looks tidy but can crease or wear with handling.

Questions and answers

Which is better for a noisy unit?
The Frost King. Its urethane foam is made to cut noise and vibration, and it is easy to press into the gap. The GCGOODS is thicker but has a stiffer face.
Which seals better around the top?
The GCGOODS. It includes a 39-inch top seal strip, so it covers the upper gap as well as the sides. The Frost King covers the sides only.
Which is easier to fit to an odd gap?
The Frost King. You can cut the foam to shape and stick the included channels on. The GCGOODS faux-leather face is less forgiving to trim.
Will the GCGOODS fit my unit?
It is stated for units from 5000 to 22000 BTU, with 17 by 9 inch side panels. Check your unit's side opening before buying.
Is the GCGOODS worth stepping up to?
If you want a top seal and a cleaner indoor look, yes. If you mainly want to quiet rattles and fit an uneven gap, the Frost King does that better.
Do either last more than a season?
Both are foam-based and can last several seasons indoors if kept dry. The Frost King's adhesive channels are the part most likely to give out first.

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