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A crushed hose is a machine working twice as hard for less

The best replacement exhaust hoses for 2026

A crushed or kinked exhaust hose restricts airflow the same way a pinched drinking straw does, and the compressor responds by working harder for less cooling — a common, invisible cause of a portable unit that "used to be colder." Diameter and connector shape are model-specific and the first thing to check, but the detail that separates hoses in this hub is crush resistance: a hose that holds its round cross-section under its own weight or a light knock keeps airflow consistent, while a thin uninsulated one collapses at the first tight bend behind furniture. We compare diameter and connector fit, length, crush resistance, and whether the hose is insulated — an uninsulated hose radiates heat back into the room it is meant to be cooling.

What we recommend

  1. HG Power white 150 mm flexible exhaust hose coiled beside its packaging

    HG Power PI426

    A flexible 150 mm exhaust hose HG Power extends up to 5 metres, built from aluminium foil, PVC, PET and a steel wire spiral, and rated for a -30°C to 80°C working range. HG Power markets it as a universal fit for mobile air conditioners, tumble dryers, extractor fans and grow tents, rather than for one declared appliance model.

    Diameter
    Inner ≈155 mm, outer ≈161 mm, per HG Power
    Length
    Extends up to 5 m; can be cut shorter
    Material
    Aluminium foil, PVC, PET and a steel wire spiral
    Temperature range
    -30 °C to 80 °C, per HG Power
    Colour
    White
    Amazon reference
    B0F248J4SF (identical on DE/FR/IT/ES; no EAN published)
    • Confirmed with a valid New-condition price on all four European markets checked (DE, FR, IT, ES)
    • Published temperature range (-30 °C to 80 °C) and a layered aluminium/PVC/PET construction, more detail than a plain PVC hose
    • No declared compatibility with any specific appliance model — it is sold by diameter (≈155 mm inner), not by machine

    Best for: A universal 150 mm replacement or extension hose, for a buyer who has already measured their unit's own exhaust port.

    ≈ 21 €
    Check price on Amazon
  2. Aygrochy black 150 mm flexible exhaust hose with two stainless-steel hose clamps

    Aygrochy 150 mm, Black

    A 150 mm exhaust hose Aygrochy states at 153 mm diameter and up to 3 metres long, built from a PVC membrane, steel wire and a double aluminium-foil layer, rated -30°C to +100°C and stated to pass the GB8624 B1 combustion test. Ships with two stainless-steel hose clamps. Aygrochy markets it as a universal fit rather than for one declared appliance model.

    Diameter
    153 mm, per Aygrochy
    Length
    Up to 3 m
    Material
    PVC membrane, steel wire and a double layer of aluminium foil
    Temperature range
    -30 °C to +100 °C, stated to pass the GB8624 B1 combustion test
    Included hardware
    2 stainless-steel hose clamps
    Colour
    Black
    Amazon reference
    B0BQJ1SLYP (identical on DE/FR/IT/ES; no EAN published)
    • Confirmed with a valid New-condition price on all four European markets checked (DE, FR, IT, ES), each with 2 active seller offers at the time of checking
    • Wider published temperature range (up to +100 °C) than the HG Power or FanGoFast hoses in this hub, plus a stated GB8624 B1 combustion-test pass
    • No declared compatibility with any specific appliance model — it is sold by diameter (153 mm), not by machine

    Best for: A short universal 150 mm hose run, for a buyer who wants a stated fire-test result and doesn't need more than 3 m of reach.

    ≈ 19 €
    Check price on Amazon
  3. FanGoFast black 150 mm flexible exhaust hose extended to its full length

    FanGoFast FG-AIRDUCT6IN-6M

    A 150 mm exhaust hose FanGoFast builds to a stated 6 m length, stretchable to about 6.5 m, from aluminium foil, PVC, PET and a steel spiral core, rated -30°C to 80°C. FanGoFast markets it for mobile air conditioners, washer-dryers, extractor fans and kitchen hoods generally, rather than for one declared appliance model — the longest reach of the three hoses in this hub.

    Diameter
    Inner 150 mm, per FanGoFast
    Length
    6 m stated, stretchable to about 6.5 m; can be cut shorter
    Material
    Aluminium foil, PVC, PET and a steel spiral core
    Temperature range
    -30 °C to 80 °C, per FanGoFast
    Colour
    Black
    Amazon reference
    B0FDQKYRVD (identical on DE/FR/IT/ES; no EAN published)
    • Confirmed with a valid New-condition price on all four European markets checked (DE, FR, IT, ES)
    • Longest reach of the three hoses in this hub: 6 m stated, stretchable to about 6.5 m
    • No declared compatibility with any specific appliance model — it is sold by diameter (150 mm), not by machine

    Best for: A universal 150 mm hose for a longer run — an appliance placed well back from the window — for a buyer who has already measured their unit's own exhaust port.

    ≈ 21 €
    Check price on Amazon

Which one for which need

Reaching a distant window

The length decides the distance between the unit and the opening. Too short, and it forces you to push the air conditioner against the window.

FanGoFast FG-AIRDUCT6IN-6M

Keeping the efficiency

The diameter must match the unit's outlet exactly. Reducing the section throttles the exhaust and makes the cooling collapse.

HG Power PI426

Who each type suits

Replacement
A punctured or crushed hose lets hot air escape back into the room. The most common failure and the least visible.
Unit far from the window
A longer hose lets you put the unit where you want, at the price of efficiency lost with every metre.
Cutting the losses
An insulated hose limits the heat returned to the room along its whole run. The best-value improvement in this aisle.

The trade-offs to weigh

Length against efficiency
Every metre of hose warms the air on its way and gives heat back to the room. The hose should be as short as possible.
Flexibility against pressure loss
A flexible corrugated hose fits anywhere and slows the air. It must be stretched out as far as it goes, never left concertinaed.
Fixed diameter against adapters
The diameter is set by the unit; the reducers on sale throttle the exhaust. A hose of the right diameter beats an adapter.

Questions buyers ask

Can the hose be extended?

It is possible and inadvisable: every extra metre warms the air and makes the cooling collapse. Manufacturers generally advise against exceeding the supplied length.

Should the hose be stretched out?

As far as it goes. A hose left concertinaed multiplies the exchange surface and the pressure losses.

Can it go through a half-open door?

It works and lets a great deal of warm air back in through the opening. A sealing panel is essential.

Should the hose be insulated?

It is the most effective improvement in this aisle: it limits the heat returned to the room along the whole run.

How do I know which diameter to order?

By measuring the unit's outlet. There are few common diameters but they are not interchangeable.

Can the hose be punctured?

It wears at repeated folds and punctures without it showing. Hot air then comes straight back into the room.

Should the hose slope?

It should fall slightly towards the outside or stay horizontal, and never form a low point where condensate collects.

What to remember

Every metre of hose costs efficiency: as short and as stretched out as possible, never concertinaed. The diameter is set by the unit and a reducer throttles the exhaust — insulating the hose is the best-value improvement here.

This category at a glance

  • Most affordable here: Aygrochy 150mm Schwarz, at 19 €.
  • Highest Diameter in this category: HG Power PI426 (Inner ≈155 mm, outer ≈161 mm, per HG Power).
  • Highest Length in this category: FanGoFast FG-AIRDUCT6IN-6M (6 m stated, stretchable to about 6.5 m; can be cut shorter).

Every model compared

Only the specifications at least four models out of five state. A column that is more empty than full compares nothing.

ModelPriceAmazon referenceColourDiameterLength
Aygrochy 150mm Schwarz19 €B0BQJ1SLYP (identical on DE/FR/IT/ES; no EAN published)Black153 mm, per AygrochyUp to 3 m
FanGoFast FG-AIRDUCT6IN-6M21 €B0FDQKYRVD (identical on DE/FR/IT/ES; no EAN published)BlackInner 150 mm, per FanGoFast6 m stated, stretchable to about 6.5 m; can be cut shorter
HG Power PI42621 €B0F248J4SF (identical on DE/FR/IT/ES; no EAN published)WhiteInner ≈155 mm, outer ≈161 mm, per HG PowerExtends up to 5 m; can be cut shorter

Sources and method

Specifications: manufacturer sheets and Amazon product pages. Prices and availability: Keepa. No product on this site has been physically tested.

Most recent revision in this category: August 24, 2026.

How we assess products

Prices quoted in these summaries are dated readings. The live price is shown next to each product.