Siamp Diaphragm Washer
a small market ($45K/yr) — Siamp Diaphragm Washer doesn't clear our bar today.
Flapen Score
Is Siamp Diaphragm Washer profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Siamp Diaphragm Washer is a £45K/yr Amazon United Kingdom market (63K searches/yr). The top 5 brands hold 83% of demand. Verdict: Skip it — 48/100.
Siamp Diaphragm Washer: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -5.7% over the last 90 days and 8.1% of searches end in a purchase.
£45K
revenue / yr
Who owns the niche?
The top 5 brands hold 83% of demand, so 17% of the market is open.
17%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.4★ — the gap to enter on.
0/100
page quality · 30 products
Top Siamp Diaphragm Washer products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Pack of 3 Replacement Rubber Ball Valve Washers - Fits All Siamp Fill Valves
- Price
- £4.23
- Rating
- 4.4/5
- Reviews
- 1,185
- Age
- 6y ago
2 x SIAMP Diaphragm Inlet Float Valve Washer Rubber 95 95L 99T 99B 99 Duravit Laufen Twyford
- Price
- £4.32
- Rating
- 4.6/5
- Reviews
- 4,346
- Age
- 3y ago
SIAMP 32335510 33A Storm Flush Valve - White
- Price
- £16.65
- Rating
- 4.6/5
- Reviews
- 1,549
- Age
- 12y ago
SIAMP 32499910 Optima 49 Flush Valve - White
- Price
- £18.39
- Rating
- 4.6/5
- Reviews
- 1,778
- Age
- 13y ago
2 x Inlet Float Valve Diaphragm Washer - Spare Rubber Ball Valve WASHERS - Replacement Diaphragm Washer - FITS for All SIAMP Inlet VALVES Black
- Price
- £3.12
- Rating
- 4.2/5
- Reviews
- 280
- Age
- 3y ago
Trending
90-day click momentum
2pcs Replacement Toilet Flush Valve Seal Compatible with Siamp Toilet Flush Valves 49 and 50 Flush Valve Rubber Seal Washer Toilet Cistern Seal 43mm X 71mm
- Price
- £4.76
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 4mo ago
4 PCS Replacement Rubber Ball Valve Washers 27mm Diameter Cistern Refill Valve Diaphragms Toilet Inlet Float Valve Diaphragm Washer Seals Compatible with Siamp Flush Valve Siamp Diaphragm Washer
- Price
- £3.96
- Rating
- 3.6/5
- Reviews
- 4
- Age
- 3mo ago
10pcs Toilet Fill Valve Repair Kit Diaphragm Washer Replacement Compatible With Siamp For Most Toilets Flushing Systems 27mm Diameter
- Price
- £5.43
- Rating
- 3.8/5
- Reviews
- 4
- Age
- 8mo ago
VBSYUYQ 3 Pack 27mm Diaphragm Washers Siamp Compatible Toilet Fill Valve Gaskets Replacement Ball Valve Diaphragms for Cistern Inlet Valves Fixes Running Toilets & Stops Water Leaks
- Price
- £4.60
- Rating
- 4.6/5
- Reviews
- 3
- Age
- 10mo ago
Merriway BH05605 (2 Pcs) Diaphragm Cistern Inlet Float Valve Washer to Fit Siamp 29mm Toilet Fittings - Pack of 2 Pieces
- Price
- £2.64
- Rating
- 4.2/5
- Reviews
- 59
- Age
- 8y ago
Newest
by launch date4 PCS Replacement Rubber Ball Valve Washers 27mm Diameter Cistern Refill Valve Diaphragms Toilet Inlet Float Valve Diaphragm Washer Seals Compatible with Siamp Flush Valve Siamp Diaphragm Washer
- Price
- £3.96
- Rating
- 3.6/5
- Reviews
- 4
- Age
- 3mo ago
2pcs Replacement Toilet Flush Valve Seal Compatible with Siamp Toilet Flush Valves 49 and 50 Flush Valve Rubber Seal Washer Toilet Cistern Seal 43mm X 71mm
- Price
- £4.76
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 4mo ago
10pcs Toilet Fill Valve Repair Kit Diaphragm Washer Replacement Compatible With Siamp For Most Toilets Flushing Systems 27mm Diameter
- Price
- £5.43
- Rating
- 3.8/5
- Reviews
- 4
- Age
- 8mo ago
Taps2Traps - Replacement Chrome Toilet Dual Flush Button & 470mm Optima 50 Long Wire Flush Valve Cable Fits Siamp Cable Operated Flush Valves
- Price
- £19.02
- Rating
- 4.8/5
- Reviews
- 5
- Age
- 8mo ago
VBSYUYQ 3 Pack 27mm Diaphragm Washers Siamp Compatible Toilet Fill Valve Gaskets Replacement Ball Valve Diaphragms for Cistern Inlet Valves Fixes Running Toilets & Stops Water Leaks
- Price
- £4.60
- Rating
- 4.6/5
- Reviews
- 3
- Age
- 10mo ago
Competition: brands, sellers & click share
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.
Brands
17 rising
Sellers
38
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
50%
Top 20: 90%
Open market
15%
- SIAMP46%
- Taps2Traps22%
- Generic7%
- NEKAWA4%
- Kaelosyn4%
- VBSYUYQ2%
- Open — no brand owns it (11 brands, 15%)
Siamp Diaphragm Washer demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Top Siamp Diaphragm Washer search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- siamp flush valve20K/yr
- siamp diaphragm washer10K/yr
- siamp optima 506K/yr
- diaphragm washer4K/yr
- siamp optima 497K/yr
- siamp5K/yr
- twyford toilet cistern spares4K/yr
- vitra toilet parts4K/yr
- diaphragm washer for cistern float valve3K/yr
What reviews say buyers love and hate about Siamp Diaphragm Washer
What buyers mention most, as a share of all reviews.
What buyers love
92% of reviews“As described and fitted”
“Exactly What I Needed”
“Very good exactly what I needed”
“This item is worth every penny”
“does the job perfectly”
What buyers complain about
85% of reviews“Didn't work”
“Does not fit siamp”
“Not so cheap after all”
“Leaks”
“So it constantly overflows”
Siamp Diaphragm Washer return rate & reasons
Why buyers send it back, as a share of all return requests.
0.9%
Return rate
62%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Siamp Diaphragm Washer questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
