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Drain Fly Killer

Maybe

Buyers convert on 20.7% of searches. But prices span $2.41–$9.75, mostly outside the sweet spot, so Drain Fly Killer is a Maybe.

Flapen Score
50
50 / 100
Top 31% of 2,976 Grocery niches · +4 vs the category median of 46
Market size
£2.9M/yr2.7M searches / yr
90-day growth
-9.2%search demand this quarter
Competition
77%top-5 click share · 7 brands · 117 sellers

Flapen Score

Drain Fly Killer against its category

The dotted line is the Grocery average. Past it, Drain Fly Killer is stronger. Inside it, weaker.

50Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Drain Fly Killer market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Drain Fly Killer 2.7M times last year and spent an estimated £2.9M. The top 5 brands take 97% of clicks. Flapen scores it 50 out of 100, a Maybe.

01 · Demand

An estimated 20.7% of those searches ended in a purchase.

Shoppers searched for this 2.7M times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 20.7% of those searches ended in a purchase. Searches in the last 90 days moved -9.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated £2.9M a year.

Searches, last 12 months
2.7M
Growth, 90 days vs prior 90
-9.2%
Conversion, latest week
20.7%
Market size, estimated
£2.9Ma year
Peak month
January1.3× the quietest month
Top search term
drain unblocker1.2M searches a year

02 · Price

A sale here is worth £5.25.

Listings sell for £5.25 on average, from £2.41 to £9.75. Amazon reports units sold in ranges. This niche sold 500K to 600K a year. The average listing sells 30,000 to 40,000 of them. At £5.25 that is £158K to £210K a year per listing.

Average price
£5.25under the $15 to $100 sweet spot
Price range
£2.41–£9.75
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
500K–600K
Units per listing a year
30,000–40,000
Revenue per listing a year
£158K–£210K
Returns
0.1%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is ads and reviews.

100% of listings pay for placement with sponsored ads. 87% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #10 within Household Cleaners. It carries 5,393 reviews at 4.33 stars, so a new listing needs social proof before a better product.

Sponsored listings
100%
Prime listings
87%
Out of stock, average day
0.0%
Average rank
#10in Household Cleaners
Average rating
4.33 starsAmazon United Kingdom average 4.36 stars
Average reviews
5,393per listing
Listings tracked
15

04 · Newcomers

Brands here are settling in.

The brands on the shelf have sold for 38 months on average, so the names here are settling in.

Launched, last 12 months
0
Successful launches
0Amazon's first-year sales bar
Average brand age
38 months

Products

Top Drain Fly Killer products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 24, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 77% of clicks. A locked shelf that new listings rarely crack.

£0£294K£588K£882K£1.2M1001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

7 rising

Sellers

117

Est. top-5 brand share

97%

Top 20: 100%

Est. top-5 click share

77%

Top 20: 100%

Open market

1%

  • Mr Muscle73%
  • Buster14%
  • HG6%
  • Cillit Bang2%
  • MultiWare2%
  • STORM TRADING GROUP1%
  • Open — no brand owns it (1 brand, 1%)

Demand

Drain Fly Killer search demand

Weekly searches over the year, seasonality beneath. Pick a range.

60K40KPrime Day '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.3×

Search terms

Top Drain Fly Killer search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • drain unblocker1.2M/yr
  • sink unblocker432K/yr
  • drain cleaner317K/yr
  • mr muscle drain unblocker217K/yr
  • mr muscle82K/yr
  • shower drain unblocker62K/yr
  • drain cleaners and unblockers48K/yr
  • sink cleaner40K/yr
  • kitchen sink unblocker43K/yr
  • bathroom drain unblocker34K/yr

Reviews and returns

What reviews say buyers love and hate about Drain Fly Killer

We read the reviews and the return reasons for every product selling here.

21%of positive reviews mention “Advertised Vs Actual Product”
39%of negative reviews mention “Functionality-Overall”
0.1%of orders come back
“Not worked with me”
A buyer, on “Functionality-Overall”39% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

17 topics

NegativePositive

FAQ

Common Drain Fly Killer questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data