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The only waterproof cover with a vent, and the only fabric weight published

Mrrihand UPC

A 420-denier waterproof cover for units up to 24 by 24 by 30 inches, with an air vent and side Velcro openings.

Mrrihand heavy duty waterproof air conditioner cover on an outdoor unit

Mrrihand UPC

A 420-denier waterproof cover for units up to 24 by 24 by 30 inches, with an air vent and side Velcro openings.

Type
Waterproof, sealed fabric — with an air vent
Fits
Units up to 24 × 24 × 30 in
Material
420D polyester oxford, heavy duty waterproof
Ventilation
Air vent, to prevent moisture and condensate build-up inside the unit
Fixing
Elastic hem cords; side Velcro openings that seal around a duct
Handling
Padded handle for fitting and removal
Protects against
Rain, snow, dust, sun, debris, hail
Sizing advice
Choose a cover 2 inches larger than the unit, as the maker recommends
Cleaning
Water or mild soap; not machine washable
Included
Storage bag
Amazon reference
B09DP76Z54
EAN
0720168356350
  • The only listing on this shelf that publishes a fabric weight: 420 denier polyester oxford
  • The only waterproof cover here with an air vent, named as preventing moisture and condensate inside the unit
  • A sealed cover traps moisture, and the air vent is an admission of the problem rather than a solution to it

Best for: A condenser shut down for a hard winter of snow and hail, uncovered again in spring

≈ $27
Check price on Amazon

Specifications

Type
Waterproof, sealed fabric — with an air vent
Fits
Units up to 24 × 24 × 30 in
Material
420D polyester oxford, heavy duty waterproof
Ventilation
Air vent, to prevent moisture and condensate build-up inside the unit
Fixing
Elastic hem cords; side Velcro openings that seal around a duct
Handling
Padded handle for fitting and removal
Protects against
Rain, snow, dust, sun, debris, hail
Sizing advice
Choose a cover 2 inches larger than the unit, as the maker recommends
Cleaning
Water or mild soap; not machine washable
Included
Storage bag
Amazon reference
B09DP76Z54
EAN
0720168356350

What the maker puts in writing

  • Fits units up to 24 × 24 × 30 in
  • 420D polyester oxford, heavy duty waterproof
  • Air vent to prevent moisture and condensate build-up
  • Elastic hem cords, side Velcro openings, padded handle
  • Water or mild soap; not machine washable · storage bag included

The vent is the honest detail

Air vent promotes air flow to prevent moisture and condensate build-up within the unit that keep Dry.

A sealed cover keeps rain out and keeps moisture in. That is the standing criticism of waterproof condenser covers, and it is why three products on this shelf are mesh instead.

This listing does not dodge it: it puts a vent in and tells you why. That is the right answer for a cover meant to go on in November and come off in April.

Two inches larger

The only sizing rule published on this shelf, and the one that prevents a torn hem in the first gale.

Availability

Read on the day this page was built: $27 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

Is a waterproof cover a good idea?

For a unit that is off all winter, it keeps snow and hail off the fan and the coil. For a unit that still runs, it is a bad idea: sealed fabric holds moisture against aluminum fins and accelerates corrosion. This listing addresses that with an air vent, which is the only acknowledgement of the problem on this shelf.

What does 420D mean?

Four hundred and twenty denier — the thickness of the yarn. Higher is heavier and tougher. It is the only fabric weight published anywhere on this shelf, and it is a mid-to-heavy outdoor grade.

How do I size it?

The maker says to measure the unit and choose a cover two inches larger. That is genuinely useful: a cover cut exactly to size strains at the hem in wind and tears. No other listing here offers the rule.

More protective covers

  • RUNZEG waterproof air conditioner cover fitted over an outdoor unit

    RUNZEG Not stated by the maker

    A waterproof polyester oxford cover 26 by 26 by 32 inches, with a drawstring and a carrying bag.

    Type
    Waterproof, sealed fabric
    Size
    26 in wide × 26 in deep × 32 in high
    Fits
    Outdoor AC units up to 26 × 26 in; also swamp coolers, pool heaters, condensers, heat pumps and compressors of similar size
    Material
    Polyester oxford with a professional waterproof undercoating
    Fixing
    Adjustable drawstring cord
    Keeps out
    Snow, rain, wind, sunlight, dust, resin, leaves, debris, bird droppings
    Cleaning
    Damp cloth or rinse; dries in the sun
    Included
    Carrying bag
    Breathability
    Claimed as more breathable than PVC covers; no figure
    Amazon reference
    B0DG47G9F1
    EAN
    0784668670798
    • Full height at 32 inches and fully waterproof, at the lowest price on this shelf for a sealed cover
    • Names five other appliances it fits — swamp coolers, pool heaters, condensers, heat pumps, compressors — which is the widest application list here
    • It is a sealed cover: moisture that gets in cannot easily get out, and unlike the other waterproof cover here it has no air vent

    Best for: A condenser, pool heater or swamp cooler shut down for the winter in a wet climate

    ≈ $10
    Check price on Amazon
  • XINNIKESI insulated aluminum foil air conditioning pipe cover with zip

    XINNIKESI XINNIKESI

    A zipped double-layer foil and oxford sleeve for refrigerant lines from a quarter inch to one and an eighth.

    Type
    Refrigerant line cover — not a unit cover
    Fits pipe
    1/4 in to 1 1/8 in diameter
    Construction
    Double-layer aluminum foil with reinforced oxford cloth
    Closure
    Zip, universal, no tools
    Protects against
    UV damage, extreme temperatures, heavy rainfall
    Function
    Reflective foil reduces heat transfer; oxford cloth resists tearing
    Use
    Indoor or outdoor; balconies, rooftops, exterior walls
    Systems
    Window-mounted or split systems
    Length
    Not stated by the maker
    Amazon reference
    B0FVR9379C
    EAN
    7698310251965
    • The only product on this shelf for the refrigerant lines, which lose efficiency when their insulation perishes in sunlight
    • Covers a real range of pipe sizes — 1/4 to 1 1/8 inch — with a zip, so it goes on without cutting the line
    • Does not publish its length, which is the dimension you need to know how much pipe it covers

    Best for: A split system whose line insulation has gone grey and crumbly in the sun

    ≈ $17
    Check price on Amazon
  • CREATCABIN fabric dust cover for tower and pedestal fans

    CREATCABIN Tower Fan Dust Cover 125x60cm

    A generic-sized fabric dust cover for tower and pedestal fans, at 125x60cm (49.2 × 23.6 in). This is a universal-fit accessory rather than one built for a specific reviewed model — check your fan's actual height and base width against this size before buying. Confirmed with a live offer on Amazon.de; we did not find a listing on the other three markets we checked.

    Dimensions
    125cm (49.2 in) tall x 60cm (23.6 in) wide, per the listing
    Fit type
    Generic / universal — not model-specific
    Material
    Fabric, stated dust-resistant
    • Cheap, and confirmed with a live offer on Amazon.de
    • A generic size that covers most tower and taller pedestal fans, rather than requiring a model-exact match
    • Generic fit — measure your specific fan before ordering, since this isn't built for any one model reviewed on this site

    Best for: Anyone storing a tower or tall pedestal fan off-season who has already checked their fan's height and base width fall within 125x60cm (49.2 × 23.6 in).

    Search Amazon for this model

Elsewhere in the spares drawer

  • RCECAOSHAN replacement remote control for Frigidaire air conditioner

    RCECAOSHAN NA

    A third-generation Frigidaire remote carrying more than twenty-two codes, replacing the first-generation remotes it illustrates.

    For
    Frigidaire air conditioners whose original remote resembles those illustrated
    Generation
    Third generation, replacing first-generation remotes
    Codes
    Over 22 remote control codes pre-loaded
    Programming
    None — works once batteries are fitted
    Universal
    No — stated in capitals, repeated
    Batteries
    Not stated as included
    Bullet list
    None published — the detail is in the description
    Display scale
    Not stated by the maker
    Amazon reference
    B07PKCHQ72
    EAN
    8431257415538
    • More than twenty-two codes in one remote, so it covers a whole family of Frigidaire originals rather than one part number
    • Works straight out of the package with no programming, which the seller contrasts directly with universal remotes
    • No feature bullets at all: everything is in a numbered description, including the compatibility rule

    Best for: A Frigidaire air conditioner whose original remote has died, where the old handset is still to hand for comparison

    ≈ $15
    Check price on Amazon
  • RIRIDAMAI adjustable PVC window plate kit with a 150mm exhaust hose opening

    RIRIDAMAI PVC Window Plate Kit (150mm)

    RIRIDAMAI's window kit is four rigid PVC and ABS panels rather than a fabric sheet, adjustable by nut from 43 to 140 cm (16.9 to 55.1 in) to match the window's opening, and built around a 150 mm (5.91 in) exhaust-hose opening. RIRIDAMAI states it's designed for sliding windows specifically, fitted into the window track without tools.

    Adjustable range
    43–140 cm (16.9 to 55.1 in) per panel, set with a nut
    Panel width
    16 cm (6.3 in) each; 2 to 4 panels used depending on window size
    Hose opening
    150 mm (5.91 in), per RIRIDAMAI
    Material
    PVC + ABS, stated heat- and wear-resistant
    Amazon reference
    B0GJYJ9Y1W (identical on DE/FR/IT/ES; not found on Amazon US or GB)
    EAN
    Not published
    • Confirmed with a valid New-condition price on four markets (DE, FR, IT, ES)
    • Rigid PVC+ABS panels rather than fabric — a different mounting method to the two cloth kits also reviewed on this site, and one better suited to a sliding-window track
    • Not found as a listing on Amazon US or Amazon UK at the time of checking

    Best for: A sliding window paired with a single-hose unit that has roughly a 150 mm (5.91 in) exhaust outlet, where a rigid, track-mounted panel suits the window style better than a fabric sheet.

    Search Amazon for this model
  • Amazon Smart Plug in white with single socket and status light

    Amazon 53-025345

    A single Alexa smart plug that sets up without a hub and reconnects by itself after power or Wi-Fi outages.

    Ecosystem
    Alexa only — the Alexa app and compatible Alexa devices
    Hub
    None required
    Reconnection
    Automatic after power or Wi-Fi outages
    Automation
    Timers, lighting schedules, Alexa routines, natural-language setup with Alexa+
    Size
    Compact — leaves the second outlet free for another plug
    Suitable for
    Lamps, fans, coffee makers and other devices with a physical on/off switch
    Amperage
    Not stated by the maker
    Wattage
    Not stated by the maker
    Certification
    Not stated by the maker
    Amazon reference
    B089DR29T6
    EAN
    0840080504599
    • The only plug on this shelf that promises automatic reconnection after a power or Wi-Fi outage
    • Set up entirely inside the Alexa app, with no third-party account — the simplest path on this shelf
    • Publishes no amperage and no wattage, which six plugs on this shelf do — so a space heater is a guess

    Best for: A lamp or a coffee maker in an Alexa household that wants nothing to configure

    ≈ $13
    Check price on Amazon

All protective covers