Is tap cartridges profitable to sell on Amazon United Kingdom?

The niche generates £70K/yr across 25 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is -23.5%. Flapen's verdict: Skip it (36/100).

How competitive is the tap cartridges niche?

19 brands and 29 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 67% of demand.

What do buyers complain about in tap cartridges?

Top complaints mined from reviews: Leak-Proof, Size-Overall, Quality-Overall. The return rate is 5.2% — above our launch gate.

When does demand for tap cartridges peak?

Demand peaks in Jan; the busiest month runs 1.7× the quietest.

What does it cost to enter the tap cartridges niche?

Listings span £4.32–£11.53; the average listing price is £7.32 (sweet spot $15–$100). The average incumbent carries 771 reviews — the moat a new listing must climb.

tap cartridges

Skip it

Prices mostly outside the sweet spot ($4.32–$11.53) — this niche doesn't clear our bar today.

Review moat

Good770.6

avg incumbent reviews — the moat a new listing must climb

Brand share

Good67%

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

Conversion

Good5.2%

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Competition

Okay59%

top-5 click share — leaders hold, buyers still browse

Returns

Bad5.2%

return rate — above 5% kills the launch gate

Avg price

Bad£7.32

avg listing price — sweet spot $15–$100

Market size

Bad£70K

£70K/yr · 183K searches

Growth

Bad-23.5%

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

Price range

Bad£4.32–£11.53

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

Signals High Returns

According to Flapen's Amazon United Kingdom niche tracking, tap cartridges is a £70K/yr Amazon United Kingdom market (183K searches/yr). The top 5 brands hold 67% of demand. Demand peaks in Jan. Verdict: Skip it — 36/100.

Data updated Jul 22, 2026 · scored weekly · How we score niches

tap cartridges market data

Units sold / yr: 8K–10K; avg 250–500/product
Revenue / yr: £59K–£73K; units × avg price
Conversion rate: 5.2%
Avg BSR: #81
Page quality: 0%
Prime: 100%
Sponsored: 80%
Out of stock: 0.7%
Avg brand age: 30 months
Avg seller age: 180 days

Competition & brand share

The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.

Brands

19 rising

Sellers

Top-5 brand share

67%

Top 20: 100%

Top-5 click share

59%

Top 20: 93%

Open market

28%

Seawhisper28%
Generic17%
Libenxue9%
MOTTDAM8%
NEUSID5%
Haiba5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -23.5% search growth over the last 90 days.

Peak months: Jan · busiest ÷ quietest = 1.7×

Open Trend

Top tap cartridges search terms

tap cartridge replacement29K/yr -26.3%3.9% conv.
mixer tap cartridge25K/yr -26.9%3.7% conv.
tap cartridge15K/yr -22.8%3.8% conv.
tap parts13K/yr -36.5%0.6% conv.
tap inserts11K/yr -20.6%2.2% conv.
tap valve replacement9K/yr +18.8%5.8% conv.
tap valve9K/yr -22.1%3.8% conv.
mixer tap cartridge replacement7K/yr -31.1%2.9% conv.
tap cartridges11K/yr -28.4%1.1% conv.
tap replacement parts6K/yr +7.4%0.9% conv.

All search terms

Top tap cartridges 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★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

1/2 BSP Tap Cartridge Replacement Valves Brass Ceramic Disc Gland Insert 20 Teeth Spline Quarter Turn Hot & Cold Pair for UK Kitchen & Bathroom Basin Taps

Seawhisper£7.324.5★3,979 rev

2 Pack Mixer Tap Cartridge 1/4 Turn 20 Spline Brass Replacement Ceramic Tap Valve Cartridge for Kitchen Shower Bathroom Taps

Generic£7.734.2★140 rev

2PCS Solid Brass Ceramic Tap Cartridge 1/4 Turn 20 Spline - Universal Replacement for Kitchen/Bathroom/Shower Mixer Taps w/Washers & Seals

Libenxue£5.404.4★46 rev

Replacement Brass Ceramic Stem Disc Cartridge Faucet Valve Quarter Turn 1/2 for Bathroom Kitchen Tap (1 Pair Hot & Cold)

MOTTDAM£6.114.3★2,652 rev

2 Pieces Universal Mixer Tap Cartridge for Bathroom Kitchen 1/4 Turn 20 Spline Replacement Ceramic Tap Cartridges Tap Valve Solid Brass Ceramic (1 Pair Hot & Cold)

NEUSID£5.624.3★107 rev

Newest

by launch date

CEYOME 2PCS Tap Cartridge Replacement 1/2 Inch Ceramic Disc Tap Valve Quarter Turn - 20 Spline Solid Brass Mixer Tap Inserts for Kitchen & Bathroom Basin (Hot & Cold Red & Blue)

CEYOME£7.835 rev

6mo ago

1 Pair Universal Ceramic Tap Cartridge 1/4 Turn Solid Brass Faucet Valve Replacement Hot and Cold Tap Inserts Durable Ceramic Disc Mixer Core for Bathroom Basin Kitchen Sink Shower Taps

Lynqvor£5.8513 rev

8mo ago

2 Pcs Ceramic Tap Cartridge 1/4 Turn 20 Spline Tap Valve Replacement for Shower Bath Taps with Washers Tap Glands Seals Repair Kit Solid Brass Ceramic (1 Pair Hot & Cold)

Livawnd£5.684 rev

9mo ago

Mixer Tap Cartridge 1/4 Turn 20 Spline Universal Solid Brass Ceramic Disc Tap Valves Replacement for Kitchen Basin & Bathroom Shower Taps 2-PCSe Repair Kit

Generic£4.3210 rev

10mo ago

2 Pack Mixer Tap Cartridge Brass Ceramic Tap Valve Cartridge Replacement for Franke Eiger SP3561 Kitchen Tap (WRAS Approved)

YAMATARO£8.1824 rev

11mo ago

What buyers say about tap cartridges

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

What buyers love

Size-Overall26%

“Easy fit”

Quality-Overall18%

“Great product recommended to by”

Value For Money15%

“Excellent value”

Leak-Proof8%

“No more drips”

Advertised Vs Actual Product7%

“Does the job”

Assembly/Installation6%

“Install is straight forward”

Ease Of Use5%

“Easy to use”

Functionality-Overall2%

“the valve works fine”

Durability1%

“more durable than cheaper options”

Correct Contents1%

“Perfect part”

What buyers complain about

Leak-Proof19%

“had been dripping quite a while”

Size-Overall11%

“will not fit most tap knobs”

Quality-Overall10%

“Cheap”

Durability8%

“Unfortunately, after less than four years, the internal mechanism has broken”

Color6%

“So blue was really red”

Ease Of Use4%

“Incidentally, the old cartridge was extremely difficult to remove”

Advertised Vs Actual Product4%

“Incorrect description”

Instructions/User Manual/Troubleshooting2%

“Check direction before fitting”

Value For Money1%

“The tap was quite expensive”

Top return reasons

Size-Overall79%

Compatibility-Overall10%

Defective Material/Parts3%

Leak-Proof2%

Advertised Vs Actual Product2%

Functionality-Overall1%

Quality-Overall1%

Maintenance And Repair0%

Assembly/Installation0%

Measurement/Reading Accuracy0%

Common questions

Is tap cartridges profitable to sell on Amazon United Kingdom?: The niche generates £70K/yr across 25 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is -23.5%. Flapen's verdict: Skip it (36/100).
How competitive is the tap cartridges niche?: 19 brands and 29 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 67% of demand.
What do buyers complain about in tap cartridges?: Top complaints mined from reviews: Leak-Proof, Size-Overall, Quality-Overall. The return rate is 5.2% — above our launch gate.
When does demand for tap cartridges peak?: Demand peaks in Jan; the busiest month runs 1.7× the quietest.
What does it cost to enter the tap cartridges niche?: Listings span £4.32–£11.53; the average listing price is £7.32 (sweet spot $15–$100). The average incumbent carries 771 reviews — the moat a new listing must climb.