20mm Flange Insert
FailThe top 5 brands take 98% of clicks, so 20mm Flange Insert is a Fail.
- Flapen Score
- 33 / 100Ranks 2,110 of 2,472 Baby Products niches · −11 vs the category median of 4433
- Market size
- $125K/yr51K searches / yr
- 90-day growth
- -14.7%search demand this quarter
- Competition
- 89%top-5 click share · 6 brands · 12 sellers
Flapen Score
20mm Flange Insert against its category
The dotted line is the Baby Products average. Past it, 20mm Flange Insert is stronger. Inside it, weaker.
Market
The 20mm Flange Insert market on Amazon at a glance
Shoppers on Amazon United States searched for 20mm Flange Insert 51K times last year and spent an estimated $125K. The top 5 brands take 98% of clicks. Flapen scores it 33 out of 100, a Fail.
01 · Demand
An estimated 14.2% of those searches ended in a purchase.
Shoppers searched for this 51K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 14.2% of those searches ended in a purchase. Searches in the last 90 days moved -14.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated $125K a year.
- Searches, last 12 months
- 51K
- Growth, 90 days vs prior 90
- -14.7%
- Conversion, latest week
- 14.2%
- Market size, estimated
- $125Ka year
- Peak month
- August1.2× the quietest month
- Top search term
- spectra flange 20mm14K searches a year
02 · Price
A sale here is worth $17.28.
Listings sell for $17.28 on average, from $8.78 to $32.49. Amazon reports units sold in ranges. This niche sold 10K to 13K a year. The average listing sells 1,250 to 1,500 of them. At $17.28 that is $22K to $26K a year per listing.
- Average price
- $17.28inside the $15 to $100 sweet spot
- Price range
- $8.78–$32.49
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 10K–13K
- Units per listing a year
- 1,250–1,500
- Revenue per listing a year
- $22K–$26K
- Returns
- 5.9%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
89% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #82 within Bottle-Feeding. It carries 3,289 reviews at 4.57 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 89%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #82in Bottle-Feeding
- Average rating
- 4.57 starsAmazon United States average 4.42 stars
- Average reviews
- 3,289per listing
- Listings tracked
- 9
04 · Newcomers
Brands here are young.
The brands on the shelf have sold for 34 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 34 months
Products
Top 20mm Flange Insert 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 12, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Spectra Baby USA - Single Breast Flange - Small / 20mm
- Price
- $14.39
- Rating
- 4.8/5
- Reviews
- 3,902
- Age
- 7y ago

Maymom 20 mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve
- Price
- $19.53
- Rating
- 4.6/5
- Reviews
- 6,022
- Age
- 3y ago

Momstouch 20mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Spectra Pump Parts Not Original Replace Accessories.
- Price
- $16.64
- Rating
- 4.3/5
- Reviews
- 592
- Age
- 2y ago

Maymom Wide Neck Pump Part for Spectra S1/S2 Pumps; Incl Wide Mouth Flange; Not Original Spectra Flange; Replaces Spectra Shield (20 mm Two Flanges)
- Price
- $16.72
- Rating
- 4.7/5
- Reviews
- 7,932
- Age
- 8y ago

MOOMentaneous 20mm Flange and Duckbill Valve Compatible with Spectra S1/S2 and 9 Plus Not Original Spectra Pump Parts Replacement
- Price
- $12.55
- Rating
- 4.6/5
- Reviews
- 111
- Age
- 1y ago
Trending
estimated 90-day click momentum
MOOMentaneous 20mm Flange and Duckbill Valve Compatible with Spectra S1/S2 and 9 Plus Not Original Spectra Pump Parts Replacement
- Price
- $12.55
- Rating
- 4.6/5
- Reviews
- 111
- Age
- 1y ago

Maymom Pump Parts Compatible with Spectra S2 S1 20mm Flange Valve Tube Bottle Backflow Protector Not Original Spectra S2 Replacement Pump Parts Duckbill Valve Bottle
- Price
- $32.49
- Rating
- 4.6/5
- Reviews
- 9,124
- Age
- 6y ago

Gotocut 20mm Flange Kit Compatible with Spectra S1/S2/9 Plus/Motif Luna Includes Flange 20mm Bottles Tubing Valves and Backflow Protectors
- Price
- $18.80
- Rating
- 4.5/5
- Reviews
- 74
- Age
- 1y ago

Spectra Baby USA - Single Breast Flange - Small / 20mm
- Price
- $14.39
- Rating
- 4.8/5
- Reviews
- 3,902
- Age
- 7y ago

Momstouch 20mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Spectra Pump Parts Not Original Replace Accessories.
- Price
- $16.64
- Rating
- 4.3/5
- Reviews
- 592
- Age
- 2y ago
Newest
by launch date
Gotocut 20mm Flange Kit Compatible with Spectra S1/S2/9 Plus/Motif Luna Includes Flange 20mm Bottles Tubing Valves and Backflow Protectors
- Price
- $18.80
- Rating
- 4.5/5
- Reviews
- 74
- Age
- 1y ago

MOOMentaneous 20mm Flange and Duckbill Valve Compatible with Spectra S1/S2 and 9 Plus Not Original Spectra Pump Parts Replacement
- Price
- $12.55
- Rating
- 4.6/5
- Reviews
- 111
- Age
- 1y ago

TOVVILD 20mm Flange Inserts for 24mm Flange/Shield Compatible with Momcozy/Medela/MOMMED/Spectra Breast Pumps Pump Parts Replace (4PCS 20mm)
- Price
- $8.78
- Rating
- 4.4/5
- Reviews
- 1,539
- Age
- 2y ago

Momstouch 20mm Flange Compatible with Spectra S1 S2 9 Plus Synergy Gold Breastpump Replacement to Spectra Pump Parts and Flange; Not Original; Replaces Shield
- Price
- $15.60
- Rating
- 4.6/5
- Reviews
- 301
- Age
- 2y ago

Momstouch 20mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Spectra Pump Parts Not Original Replace Accessories.
- Price
- $16.64
- Rating
- 4.3/5
- Reviews
- 592
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 89% of clicks. A locked shelf that new listings rarely crack.
Brands
6 flat
Sellers
12
Est. top-5 brand share
98%
Top 20: 100%
Est. top-5 click share
89%
Top 20: 100%
Open market
0%
- Maymom37%
- SPECTRA31%
- Momstouch24%
- MOOMentaneous5%
- TOVVILD2%
- Gotocut2%
Demand
20mm Flange Insert search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.2×
Search terms
Top 20mm Flange Insert search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- spectra flange 20mm14K/yr
- spectra 20mm flange12K/yr
- 20mm flange spectra10K/yr
- 20 mm flange spectra8K/yr
- spectra 20 mm flange set6K/yr
Reviews and returns
What reviews say buyers love and hate about 20mm Flange Insert
We read the reviews and the return reasons for every product selling here.
“Non functional”
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.
18 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common 20mm Flange Insert 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









