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A draft cover for a wall unit, sized to the eighth of an inch

BREEZEBLOCKER ACCD

A fleece-lined vinyl cover for through-the-wall air conditioners, fitted indoors or out, in one precise size.

BREEZEBLOCKER through-the-wall air conditioner cover in khaki vinyl

BREEZEBLOCKER ACCD

A fleece-lined vinyl cover for through-the-wall air conditioners, fitted indoors or out, in one precise size.

For
Through-the-wall air conditioners — not outdoor condensers
Fit
26¾ in to 27 in wide × 16⅞ in to 17¼ in high × 4 in deep, only
Installation
Indoor or outdoor
Material
Fleece-lined vinyl
Purpose
Eliminates drafts and reduces energy costs, as stated by the maker
Protects against
Snow, ice, rain, wind, dust, dirt and debris
Origin
Made in America
Sizes
Other sizes available; the listing asks you to choose correctly
Breathability
Not applicable — this is a sealed cover for a dormant unit
Amazon reference
B0F2LLMFJX
EAN
0850002715231
  • The only cover on this shelf aimed at draft-proofing rather than weather-proofing — it is fitted to a unit that is switched off for the winter
  • Fleece-lined vinyl, the only lined cover here, and the only one made in America
  • The most expensive cover on this shelf, and it fits one size band only — stated to the eighth of an inch, twice

Best for: A through-the-wall air conditioner left in place over winter, in a room that gets cold around it

≈ $52
Check price on Amazon

Specifications

For
Through-the-wall air conditioners — not outdoor condensers
Fit
26¾ in to 27 in wide × 16⅞ in to 17¼ in high × 4 in deep, only
Installation
Indoor or outdoor
Material
Fleece-lined vinyl
Purpose
Eliminates drafts and reduces energy costs, as stated by the maker
Protects against
Snow, ice, rain, wind, dust, dirt and debris
Origin
Made in America
Sizes
Other sizes available; the listing asks you to choose correctly
Breathability
Not applicable — this is a sealed cover for a dormant unit
Amazon reference
B0F2LLMFJX
EAN
0850002715231

What the maker puts in writing

  • For through-the-wall air conditioners
  • 26¾–27 in wide × 16⅞–17¼ in high × 4 in deep, only
  • Fleece-lined vinyl, indoor or outdoor
  • Eliminates drafts, reduces energy costs
  • Made in America

A different problem from the rest of this shelf

Seven products here keep weather off an outdoor condenser. This one keeps winter out of a room.

A through-the-wall air conditioner is a hole in the wall with a machine in it. In January that hole leaks, and a lined cover on the inside face is the cheapest thing that stops it.

The sizing, stated twice

Will only fit 26-3/4” to 27” Width by 16-7/8” to 17-1/4” Height by 4” Depth.

Half an inch of tolerance on the width. That is the tightest fitment on this shelf by a wide margin, and the reason the listing repeats it: a cover that does not seal does nothing at all.

Availability

Read on the day this page was built: $52 at the American Amazon shop.

Read from Keepa on the day this page was last revised; stock and price both move without notice.

Prices quoted in this text were read on 2026-10-04. The live price is at the top of the page.

The questions that keep coming up

Will it fit my window air conditioner?

Only if the measurements match exactly: 26¾ to 27 inches wide, 16⅞ to 17¼ high, 4 deep. The listing states them twice and asks you to consult the sizing sheet. Other sizes exist in the range; this page is one of them.

Indoor or outdoor — which is better?

Indoors stops the draft before it enters the room, which is the energy argument the listing makes. Outdoors keeps weather off the machine. This cover is offered for either, which nothing else on this shelf is.

Can I leave it on while the unit runs?

No. This is a sealed vinyl cover for a unit that is off for the season. Three covers on this shelf are mesh specifically so they can stay on a running condenser; this is not one of them.

More protective covers

  • COVERTIFY breathable mesh air conditioner cover on an outdoor condenser top

    COVERTIFY KTZ020

    A 36-inch breathable resin mesh cover with diamond perforations and integrated hooks, in one of five sizes.

    Type
    Breathable mesh top cover
    Size
    36 × 36 in
    Other sizes
    26 × 26, 28 × 28, 32 × 32, 36 × 36 and 40 × 40 in
    Material
    Tough resin mesh
    Perforations
    Diamond shaped, for airflow and against heat and moisture build-up
    Fixing
    Cover and hooks in one piece — no separate parts
    Season
    All year: snow, leaves, storms, pollen
    Height coverage
    Not stated by the maker — a top cover
    Guarantee
    Not stated by the maker
    Amazon reference
    B0FQC6SF96
    EAN
    0762849989877
    • The only cover on this shelf offered in five sizes, so the fit is a choice rather than a compromise
    • Hooks integrated into the cover, which the listing frames as no missing parts and no complicated steps
    • A top cover: it does not protect the sides, where a full-height mesh cover on this shelf does

    Best for: A standard square condenser under a tree, where leaves fall from above and the cover stays on all year

    ≈ $10
    Check price on Amazon
  • LISOL full mesh air conditioner cover fitted over an outdoor condenser unit

    LISOL Not stated by the maker

    A full-height mesh cover 28 by 28 by 32 inches in PVC-coated polyester, with a drawstring and a buckled strap.

    Type
    Full-coverage mesh — breathable
    Size
    28 in long × 28 in wide × 32 in high
    Material
    Heavy-duty PVC-coated polyester mesh
    Fixing
    Adjustable drawstring plus a strap with a plastic buckle
    Coverage
    Top to bottom, all surfaces, with the top fully covered
    Airflow
    Mesh allows circulation; stated to have no negative effect on condenser operation
    Keeps out
    Leaves, twigs, acorns, cottonwood and grass clippings
    Guarantee
    Refund or free replacement offered by the maker
    Sizes available
    Not stated — one size published
    Amazon reference
    B08HWFKL2W
    EAN
    0883339907949
    • The only cover here that is both full height — 32 inches, down to the base — and breathable mesh
    • States outright that it does not affect condenser operation, so it can stay on through the cooling season
    • The most expensive mesh cover on this shelf, at more than three times the price of two 36-inch mesh tops here

    Best for: A condenser under trees that drop acorns and cottonwood, where the cover should stay on all year

    ≈ $33
    Check price on Amazon
  • LPECMX magnetic vent cover screens with PVC frame for floor registers

    LPECMX 01

    Four magnetic 4-by-10-inch vent filters with a PVC frame and dual-layer mesh, washable and reusable.

    Type
    Indoor vent filter screens — not an air conditioner cover
    Size
    4 × 10 in, stated to fit most floor, wall and ceiling vents
    Quantity
    4
    Fixing
    Magnetic strips, stated 30% stronger than before; reinforced PVC frame
    Filtration
    Dual-layer mesh, for dust and pet hair
    Maintenance
    Vacuum or rinse under the tap; reusable
    Construction
    High-density PVC frame with an anti-fade coating
    Fits metal vents
    Yes — the magnets need a ferrous register
    MERV rating
    Not stated by the maker
    Amazon reference
    B0F53P364C
    EAN
    0723747189813
    • The cheapest product on this shelf, and the only one that works indoors on the register rather than outdoors on the machine
    • Washable and reusable, so it is a purchase rather than a subscription
    • Nothing to do with protecting an air conditioner: it filters room air at the register

    Best for: A floor register in a dusty room or a house with pets, where the duct keeps filling with hair

    ≈ $8
    Check price on Amazon

Elsewhere in the spares drawer

  • RCECAOSHAN replacement GE air conditioner remote control YK4EB1

    RCECAOSHAN CECOMINOD034937

    A replacement for GE remote parts YK4EB and YK4EB1, covering AEZ10 series air conditioners.

    Replaces part
    YK4EB and YK4EB1
    For
    GE AEZ10AP, AEZ10APH1, AEZ10AQ, AEZ10AQH1, AEZ10AQH2 and related
    Universal
    No — stated in capitals
    Batteries
    Not included
    Programming
    Not stated by the maker
    Display scale
    Not stated by the maker
    Range
    Not stated by the maker
    Amazon reference
    B01JZKBU7M
    EAN
    0601209817682
    • Replaces the same named GE part — YK4EB1 — against a different and equally specific unit list
    • Names the AEZ10 codes directly, which the other GE listing on this shelf does not cover
    • Three bullets, with no display scale, no range and no programming note

    Best for: A GE AEZ10 window unit whose YK4EB1 remote is lost or broken

    ≈ $15
    Check price on Amazon
  • RCECAOSHAN replacement remote control for LG air conditioner AKB35706904

    RCECAOSHAN Akb35706904

    A replacement LG remote covering fifteen original remote codes, including the 6711A20034 and 6711A20035 families.

    Replaces
    LG AKB35706904 and AKB35706901
    Also supplied with
    6711A20034E, 20034D, 20034A, 20034N, 20034G, 20034C, 20034U, 20034V, 20034S, 20034T, 6711A20035A, 20035D, 20035K, 6711A20056
    Universal
    No — the listing asks you to check your model number
    Batteries
    Not included
    Support
    The seller offers to identify the right remote if you are unsure
    Programming
    Not stated by the maker
    Display scale
    Not stated by the maker
    Amazon reference
    B08HW7VMHQ
    EAN
    8015429005194
    • Fifteen original remote codes in one handset — the longest single-brand code list on this shelf
    • The only listing here that offers to identify the correct remote for you if you are unsure
    • Four bullets: no display scale, no range, no programming note

    Best for: An LG air conditioner whose original remote carries an AKB357 or 6711A2 code

    ≈ $15
    Check price on Amazon
  • RCECAOSHAN replacement remote control for GE air conditioner YK4EB1

    RCECAOSHAN Air conditioner Parts

    A replacement for GE remote parts YK4EB and YK4EB1, covering AEL06 and AEL08 series air conditioners.

    Replaces part
    YK4EB and YK4EB1
    For
    GE AEL06LPL1, AEL06LPQ1, AEL06LQ, AEL06LQQ1, AEL06LQW1, AEL06LS, AEL06LSQ1, AEL08LO, AEL08LOG1, AEL08LP, AEL08LPH1, AEL08LPQ1, AEL08LQ, AEL08LQG1 and related
    Universal
    No — stated in capitals
    Batteries
    Not included
    Programming
    Not stated by the maker
    Display scale
    Not stated by the maker
    Range
    Not stated by the maker
    Amazon reference
    B01JZLEPJ6
    EAN
    0601209818788
    • Replaces a named part number — YK4EB and YK4EB1 — which is the most reliable way to buy a remote
    • Lists the AEL06 and AEL08 unit codes it serves, so the match can be made from the machine’s own label
    • Three bullets: no display scale, no range, no materials, no programming note

    Best for: A GE window unit in the AEL06 or AEL08 range whose YK4EB1 remote has been lost

    ≈ $15
    Check price on Amazon

All protective covers