13mm Flange Insert
FailShoppers spend an estimated $61K a year here, so 13mm Flange Insert is a Fail.
- Flapen Score
- 44 / 100Ranks 1,202 of 2,472 Baby Products niches · on the category median44
- Market size
- $61K/yr36K searches / yr
- 90-day growth
- +0.2%search demand this quarter
- Competition
- 49%top-5 click share · 14 brands · 21 sellers
Flapen Score
13mm Flange Insert against its category
The dotted line is the Baby Products average. Past it, 13mm Flange Insert is stronger. Inside it, weaker.
Market
The 13mm Flange Insert market on Amazon at a glance
Shoppers on Amazon United States searched for 13mm Flange Insert 36K times last year and spent an estimated $61K. The top 5 brands take 81% of clicks. Flapen scores it 44 out of 100, a Fail.
01 · Demand
An estimated 12.8% of those searches ended in a purchase.
Shoppers searched for this 36K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 12.8% of those searches ended in a purchase. Searches in the last 90 days moved +0.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated $61K a year.
- Searches, last 12 months
- 36K
- Growth, 90 days vs prior 90
- +0.2%
- Conversion, latest week
- 12.8%
- Market size, estimated
- $61Ka year
- Top search term
- 13mm flange insert12K searches a year
02 · Price
A sale here is worth $13.17.
Listings sell for $13.17 on average, from $6.83 to $32.58. Amazon reports units sold in ranges. This niche sold 5K to 6K a year. The average listing sells 100 to 250 of them. At $13.17 that is $1K to $3K a year per listing.
- Average price
- $13.17under the $15 to $100 sweet spot
- Price range
- $6.83–$32.58
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 5K–6K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $1K–$3K
- Returns
- 4.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
88% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 10.7% of listings are out of stock. The average listing ranks #73 within Breastfeeding. It carries 2,592 reviews at 4.52 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 88%
- Prime listings
- 100%
- Out of stock, average day
- 10.7%
- Average rank
- #73in Breastfeeding
- Average rating
- 4.52 starsAmazon United States average 4.42 stars
- Average reviews
- 2,592per listing
- Listings tracked
- 26
04 · Newcomers
0 of last year's 3 launches cleared the first-year sales bar.
3 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 30 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 3
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 30 months
Products
Top 13mm 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
6Pcs Breast Pump Flange Insert 13mm Compatible with Momcozy/Spectra/Medela/eufy/Elvie/Lansinoh/Paruu P10 Breast Pump Fit for Momcozy M5/M9/M6/V2 Pro/V2 pro/S12 Pro/eufy E10 S1 S1 Pro 24mm Flange
- Price
- $8.87
- Rating
- 4.5/5
- Reviews
- 253
- Age
- 1y ago

Maymom 13mm 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
- $19.63
- Rating
- 4.6/5
- Reviews
- 6,022
- Age
- 3y ago

Maymom Flange Inserts 13 mm for Medela Spectra 24 mm Shields/Flanges Momcozy/Willow Wearable Cup. Compatible with Medela Freestyle Harmony to Reduce 24mm Nipple Tunnel Down to 13 mm; 2pc/Each
- Price
- $14.69
- Rating
- 4.4/5
- Reviews
- 4,784
- Age
- 3y ago

4Pcs Breast Pump Flange Insert 13mm Compatible with Momcozy/Spectra/Medela/eufy/Elvie/Lansinoh/Paruu P10 Breast Pump Fit for Momcozy M5/M9/M6/V2 Pro/V2 pro/S12 Pro/eufy E10 S1 S1 Pro 24mm Flange
- Price
- $7.90
- Rating
- 4.5/5
- Reviews
- 635
- Age
- 1y ago

Flange Inserts 13mm 8PC Compatible with Momcozy S12 pro/S9 pro/S9/S10/S12/Medela/TSRETE/Spectra/Bellababy etc 24mm Wearable Breast Pump Reduce 24mm Tunnel Down to Correct Size
- Price
- $7.99
- Rating
- 4.6/5
- Reviews
- 347
- Age
- 2y ago
Trending
estimated 90-day click momentum
Nenesupply 13mm Oval Flanges Compatible with Medela Breast Pump Parts Replace Medela Flange Accessories. Work with Pump in Style Parts Symphony Parts Swing Maxi Harmony and Personalfit Flex
- Price
- $14.61
- Rating
- 4.4/5
- Reviews
- 4,444
- Age
- 3y ago

6pcs Updated Silicone Flange Insert 13mm Compatible with Momcozy/Medela/Spectra/Eufy/Lansinoh/TSRETE/Elvie/NCVI/Paruu Breast Pump for 24mm Flange/Shield Breastfeeding Essential Replacement Pump Part
- Price
- $9.83
- Rating
- 4.2/5
- Reviews
- 169
- Age
- 10mo ago

4Pcs Breast Pump Flange Insert 13mm Compatible with Momcozy/Spectra/Medela/eufy/Elvie/Lansinoh/Paruu P10 Breast Pump Fit for Momcozy M5/M9/M6/V2 Pro/V2 pro/S12 Pro/eufy E10 S1 S1 Pro 24mm Flange
- Price
- $7.90
- Rating
- 4.5/5
- Reviews
- 635
- Age
- 1y ago

Momstouch 13mm Flange Compatible with Spectra S1 S2 9 Plus Synergy Gold Breastpump Replacement to Spectra Pump Parts and Spectra Flange; Not Original; Replaces Spectra Shield
- Price
- $15.53
- Rating
- 4.6/5
- Reviews
- 301
- Age
- 2y ago

Flange Inserts for Spectra Spectra Replacement Pump Parts for S1/S2/9 Plus Not Original Accessories Breast Pump Parts Include 2-Pack 13MM Flanges and 4-Pack Duckbill Valves
- Price
- $9.94
- Rating
- 4.4/5
- Reviews
- 119
- Age
- 11mo ago
Newest
by launch date
6pcs Updated Silicone Flange Insert 13mm Compatible with Momcozy/Medela/Spectra/Eufy/Lansinoh/TSRETE/Elvie/NCVI/Paruu Breast Pump for 24mm Flange/Shield Breastfeeding Essential Replacement Pump Part
- Price
- $9.83
- Rating
- 4.2/5
- Reviews
- 169
- Age
- 10mo ago

Flange Inserts for Spectra Spectra Replacement Pump Parts for S1/S2/9 Plus Not Original Accessories Breast Pump Parts Include 2-Pack 13MM Flanges and 4-Pack Duckbill Valves
- Price
- $9.94
- Rating
- 4.4/5
- Reviews
- 119
- Age
- 11mo ago

Maymom Pump Parts Compatible with Spectra S2 S1 13mm Flange Valve Tube Bottle Backflow Protector Not Original Spectra S2 Replacement Pump Parts Duckbill Valve Bottle
- Price
- $32.58
- Rating
- 4.6/5
- Reviews
- 9,124
- Age
- 1y ago

4PCS Flange Insert 13mm Compatible with Momcozy M5/M6/M9/S12 Pro/S9 Pro/V1 Pro/V2 Pro Spectra/Medela/Elvie/NCVI/TSRETE/eufy/Lansinoh/Paruu/MomMed Breast Pump 24mm Shields/Flanges
- Price
- $6.99
- Rating
- 4.6/5
- Reviews
- 142
- Age
- 1y ago

6Pcs Breast Pump Flange Insert 13mm Compatible with Momcozy/Spectra/Medela/eufy/Elvie/Lansinoh/Paruu P10 Breast Pump Fit for Momcozy M5/M9/M6/V2 Pro/V2 pro/S12 Pro/eufy E10 S1 S1 Pro 24mm Flange
- Price
- $8.87
- Rating
- 4.5/5
- Reviews
- 253
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 49% of clicks. Leaders hold, but buyers still shop past them.
Brands
14 rising
Sellers
21
Est. top-5 brand share
81%
Top 20: 100%
Est. top-5 click share
49%
Top 20: 95%
Open market
12%
- Maymom35%
- BDICOVE24%
- IVARONAL7%
- Momstouch7%
- GOCROWEEN7%
- CubCare7%
- Open — no brand owns it (8 brands, 12%)
Search terms
Top 13mm Flange Insert search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- 13mm flange insert12K/yr
- 13 mm flange insert9K/yr
- 13mm flange spectra6K/yr
- 13mm flange4K/yr
- 13 mm flange spectra4K/yr
- spectra flange 13mm3K/yr
Reviews and returns
What reviews say buyers love and hate about 13mm Flange Insert
We read the reviews and the return reasons for every product selling here.
“the 13 mm I ordered were WAY too small”
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.
15 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 13mm 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









