Is karcher foam gun profitable to sell on Amazon United Kingdom?

The niche generates £133K/yr across 11 tracked products. 90-day search growth is -9.1%. Flapen's verdict: Skip it (41/100).

How competitive is the karcher foam gun niche?

9 brands and 57 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 87% of demand.

What do buyers complain about in karcher foam gun?

Top complaints mined from reviews: Quality-Overall, Durability, Compatibility-Overall. The return rate is 1.3%.

When does demand for karcher foam gun peak?

Demand peaks in Mar–Apr–May; the busiest month runs 2.6× the quietest.

What does it cost to enter the karcher foam gun niche?

Listings span £5.21–£17.26; the average listing price is £12.23 (sweet spot $15–$100). The average incumbent carries 4,701 reviews — the moat a new listing must climb.

karcher foam gun

Skip it

A concentrated shelf (top 5 take 79% of clicks) — this niche doesn't clear our bar today.

Returns

Great1.3%

return rate — above 5% kills the launch gate

Conversion

Great8.7%

search→purchase rate — share of searches ending in a sale

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Avg price

Good£12.23

avg listing price — sweet spot $15–$100

Brand share

Okay87%

top-5 brand share — brands hold most of the demand

Market size

Okay£133K

£133K/yr · 125K searches

Review moat

Bad4,700.82

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-9.1%

90-day search growth — must beat 0% to launch

Price range

Bad£5.21–£17.26

cheapest to priciest tracked listing — scored on the share inside $15–$100

Competition

Bad79%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United Kingdom niche tracking, karcher foam gun is a £133K/yr Amazon United Kingdom market (125K searches/yr). The top 5 brands hold 87% of demand. Demand peaks in Mar–Apr–May. Verdict: Skip it — 41/100.

Data updated Jul 17, 2026 · scored weekly · How we score niches

karcher foam gun market data

Units sold / yr: 10K–13K; avg 500–750/product
Revenue / yr: £122K–£153K; units × avg price
Conversion rate: 8.7%
Avg BSR: #29
Page quality: 0%
Prime: 100%
Sponsored: 82%
Out of stock: 0.0%
Avg brand age: 39 months
Avg seller age: 169 days

Competition & brand share

The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

Top-5 brand share

87%

Top 20: 100%

Top-5 click share

79%

Top 20: 100%

Open market

10%

KÄRCHER51%
OHAYORI19%
SLEEKAX6%
Xynovia6%
Qooltek4%
YUET4%
Open — no brand owns it (3 brands, 10%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -9.1% search growth over the last 90 days.

Peak months: Mar, Apr, May · busiest ÷ quietest = 2.6×

Open Trend

Top karcher foam gun search terms

karcher snow foam attachment31K/yr -9.8%9.8% conv.
karcher foam gun14K/yr +6.9%9.9% conv.
karcher snow foam13K/yr -0.7%5.1% conv.
snow foam lance karcher15K/yr -19.2%4.1% conv.
karcher foam nozzle11K/yr -10.3%8.3% conv.
karcher snow foam lance10K/yr -24.3%6.4% conv.
karcher foam5K/yr +12.6%6.3% conv.
karcher spray bottle6K/yr -8.1%4.7% conv.
karcher snow foam bottle5K/yr -5.7%6.5% conv.
snow foam gun karcher6K/yr -26.2%6.9% conv.

All search terms

Top karcher foam gun products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 11 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Kärcher 26431470 FJ6 Foam Jet Nozzle with 0.6 L Capacity Foamer for Pressure Washer Accessory Multi

KÄRCHER£12.284.4★31,020 rev

OHAYORI Snow Foam Lance 750ml Pressure Washer Foam Cannon with Adjustable Nozzle 180Bar Soap Dispenser PE Bottle Compatible with Karcher K-Serie K2 K3 K4 K5 K6 K7 Jet Washer for Car Cleaning

OHAYORI£9.774.4★167 rev

Sleekax Snow Foam Lance for Karcher K Series K2 K3 K4 K5 K6 K7 Pressure Washer -1 Litre Leak Proof Snow Foam Gun Bottle with Adjustable Nozzle - Ideal Foam Cannon for Cleaning Cars & Various Vehicle

SLEEKAX£17.264.4★1,672 rev

Xynovia Snow Foam Lance Adjustable Foam Cannon with Spray Nozzle for Karcher K2 K3 K4 k5 k6 k7 High-Pressure Foam Gun for Car Wash(750ML)

Xynovia£11.200.0★0 rev

OHAYORI Snow Foam Lance for Karcher K2 K3 K4 K5 K6 K7 Pressure Washer Replacement Cannon Upgraded Connect & Power Thick Soap Dispensal Adjustable Spray Nozzle High Car Wash Gun

OHAYORI£16.774.3★682 rev

Newest

by launch date

Xynovia Snow Foam Lance Adjustable Foam Cannon with Spray Nozzle for Karcher K2 K3 K4 k5 k6 k7 High-Pressure Foam Gun for Car Wash(750ML)

Xynovia£11.200 rev

1y ago

XtraHorn Snow Foam Gun Adjustable Foam Lance for Karcher K2 K3 K4 Pressure Washer Cannon Bottle Attachment for Car Wash 750ML

XtraHorn£11.8026 rev

1y ago

OHAYORI Snow Foam Lance for Karcher K2 K3 K4 K5 K6 K7 Pressure Washer Replacement Cannon Upgraded Connect & Power Thick Soap Dispensal Adjustable Spray Nozzle High Car Wash Gun

OHAYORI£16.77682 rev

3y ago

Sleekax Snow Foam Lance for Karcher K Series K2 K3 K4 K5 K6 K7 Pressure Washer -1 Litre Leak Proof Snow Foam Gun Bottle with Adjustable Nozzle - Ideal Foam Cannon for Cleaning Cars & Various Vehicle

SLEEKAX£17.261,672 rev

4y ago

OHAYORI Snow Foam Lance 750ml Pressure Washer Foam Cannon with Adjustable Nozzle 180Bar Soap Dispenser PE Bottle Compatible with Karcher K-Serie K2 K3 K4 K5 K6 K7 Jet Washer for Car Cleaning

OHAYORI£9.77167 rev

5y ago

What buyers say about karcher foam gun

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall26%

“Excellent product”

Ease Of Use11%

“easy to use”

Value For Money10%

“Not too expensive”

Size-Overall9%

“Great fit”

Efficiency7%

“It works perfectly”

Advertised Vs Actual Product6%

“As advertised”

Spray/Flow4%

“Works really well easy to adjust flow”

Compatibility-Overall3%

“Works great with my karcher k2”

Strength3%

“Solid bit of kit”

Pressure2%

“Good quality and works really well with my karcher pressure washer, I used turtle wax snow fism with it and really was amazed”

What buyers complain about

Quality-Overall21%

“Im starting to think Amazon has zero quality control for items sold on this platform”

Durability21%

“Broke on first time use”

Compatibility-Overall7%

“It does not fit very well to the K5”

Size-Overall7%

“does not fit”

Leak-Proof6%

“leaks like a sieve”

Spray/Flow4%

“The screw part that attaches the bottle to spray kept flying off every time I pressed the trigger”

Functionality-Overall3%

“Didnt work”

Foam3%

“doesnt create foam that sticks”

Jamming/Clogging2%

“Yellow connector jams in lance”

Add-Ons/Attachments2%

“The little yellow piece out of the attachment had got stuck in the end of the gun preventing any other attachment from fitting”

Top return reasons

Size-Overall36%

Compatibility-Overall20%

Defective Material/Parts7%

Leak-Proof6%

Functionality-Overall5%

Add-Ons/Attachments4%

Quality-Overall3%

Connectivity-Overall3%

Pressure3%

Spray/Flow2%

Common questions

Is karcher foam gun profitable to sell on Amazon United Kingdom?: The niche generates £133K/yr across 11 tracked products. 90-day search growth is -9.1%. Flapen's verdict: Skip it (41/100).
How competitive is the karcher foam gun niche?: 9 brands and 57 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 87% of demand.
What do buyers complain about in karcher foam gun?: Top complaints mined from reviews: Quality-Overall, Durability, Compatibility-Overall. The return rate is 1.3%.
When does demand for karcher foam gun peak?: Demand peaks in Mar–Apr–May; the busiest month runs 2.6× the quietest.
What does it cost to enter the karcher foam gun niche?: Listings span £5.21–£17.26; the average listing price is £12.23 (sweet spot $15–$100). The average incumbent carries 4,701 reviews — the moat a new listing must climb.