16mm Flange Inserts
FailDemand is soft, at -2.5% this quarter, so 16mm Flange Inserts is a Fail.
- Flapen Score
- 42 / 100Ranks 1,406 of 2,472 Baby Products niches · −2 vs the category median of 4442
- Market size
- $171K/yr80K searches / yr
- 90-day growth
- -2.5%search demand this quarter
- Competition
- 65%top-5 click share · 12 brands · 15 sellers
Flapen Score
16mm Flange Inserts against its category
The dotted line is the Baby Products average. Past it, 16mm Flange Inserts is stronger. Inside it, weaker.
Market
The 16mm Flange Inserts market on Amazon at a glance
Shoppers on Amazon United States searched for 16mm Flange Inserts 80K times last year and spent an estimated $171K. The top 5 brands take 88% of clicks. Demand peaks in Jun. Flapen scores it 42 out of 100, a Fail.
01 · Demand
An estimated 16.2% of those searches ended in a purchase.
Shoppers searched for this 80K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 16.2% of those searches ended in a purchase. Searches in the last 90 days moved -2.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated $171K a year.
- Searches, last 12 months
- 80K
- Growth, 90 days vs prior 90
- -2.5%
- Conversion, latest week
- 16.2%
- Market size, estimated
- $171Ka year
- Peak month
- June1.7× the quietest month
- Top search term
- 16mm flange inserts18K searches a year
02 · Price
A sale here is worth $13.28.
Listings sell for $13.28 on average, from $6.90 to $32.43. Amazon reports units sold in ranges. This niche sold 13K to 15K a year. The average listing sells 500 to 750 of them. At $13.28 that is $7K to $10K a year per listing.
- Average price
- $13.28under the $15 to $100 sweet spot
- Price range
- $6.90–$32.43
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 13K–15K
- Units per listing a year
- 500–750
- Revenue per listing a year
- $7K–$10K
- Returns
- 4.9%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
79% 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 #63 within Breastfeeding. It carries 2,404 reviews at 4.46 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 79%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #63in Breastfeeding
- Average rating
- 4.46 starsAmazon United States average 4.42 stars
- Average reviews
- 2,404per listing
- Listings tracked
- 24
04 · Newcomers
2 of last year's 5 launches cleared the first-year sales bar.
5 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 33 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 5
- Successful launches
- 2Amazon's first-year sales bar
- Average brand age
- 33 months
Products
Top 16mm Flange Inserts 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
4Pcs Breast Pump Flange Insert 16mm 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
- $7.91
- Rating
- 4.5/5
- Reviews
- 635
- Age
- 1y ago

Maymom 16mm 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
- $19.59
- Rating
- 4.6/5
- Reviews
- 6,022
- Age
- 3y ago

TOVVILD 16mm Flange Inserts for 24mm Flange/Shield Compatible with Momcozy/Medela/MOMMED/Spectra Breast Pumps Pump Parts Replace (4PCS 16mm)
- Price
- $8.89
- Rating
- 4.4/5
- Reviews
- 1,539
- Age
- 2y ago

Maymom 16mm Wide Neck Pump Part for Spectra S1/S2 Pumps; Compatible with Motif Luna Pump; Incl Wide Mouth Flange; Not Original Spectra Flange
- Price
- $17.61
- Rating
- 4.7/5
- Reviews
- 7,932
- Age
- 3y ago

Momstouch 16mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Spectra Pump Parts Not Original Replace Accessories.
- Price
- $16.74
- Rating
- 4.3/5
- Reviews
- 592
- Age
- 2y ago
Trending
estimated 90-day click momentum
Nuliie 5-in-1 Flange Sizing Kit 12/14/16/18/20mm for 24mm Flange/Shield of Most Pumps 10PCS Silicone Flange Inserts to Boost Pumping Efficiency & Comfort BPA-Free Pump Essential for Moms
- Price
- $9.90
- Rating
- 4.5/5
- Reviews
- 445
- Age
- 5mo ago

Spectra - Wide Breast Shield Set for Breast Milk Pump - XS 16mm
- Price
- $29.44
- Rating
- 4.6/5
- Reviews
- 1,312
- Age
- 4mo ago

MOOMentaneous 16mm Oval Flanges Breast Pump Parts Compatible with Medela Breast Pumps PersonalFit Maxflow Freestyle Flex Swing Maxi Connector
- Price
- $12.61
- Rating
- 4.2/5
- Reviews
- 207
- Age
- 11mo ago

16mm Maymom MyFit Shields Pano Series; Compatible with Medela Breast Pump- PersonalFit Freestyle Harmony Maxi Freestyle Flex Connector; Connect to Maymom Widemouth/Narrow Connector 2pcs
- Price
- $15.53
- Rating
- 4.5/5
- Reviews
- 8,889
- Age
- 2y ago

2PC Flange Insert 16mm Compatible with Momcozy Air 1/W1/M9/M6/M5/V1 Pro/V2 Pro for Spectra/eufy/Medela/Elvie/Lansinoh/Paruu with 24mm Flange/Shield Pump Pumping Essentials Flange Insert Kits
- Price
- $6.90
- Rating
- 4.4/5
- Reviews
- 63
- Age
- 8mo ago
Newest
by launch date
Spectra - Wide Breast Shield Set for Breast Milk Pump - XS 16mm
- Price
- $29.44
- Rating
- 4.6/5
- Reviews
- 1,312
- Age
- 4mo ago

Nuliie 5-in-1 Flange Sizing Kit 12/14/16/18/20mm for 24mm Flange/Shield of Most Pumps 10PCS Silicone Flange Inserts to Boost Pumping Efficiency & Comfort BPA-Free Pump Essential for Moms
- Price
- $9.90
- Rating
- 4.5/5
- Reviews
- 445
- Age
- 5mo ago

2PC Flange Insert 16mm Compatible with Momcozy Air 1/W1/M9/M6/M5/V1 Pro/V2 Pro for Spectra/eufy/Medela/Elvie/Lansinoh/Paruu with 24mm Flange/Shield Pump Pumping Essentials Flange Insert Kits
- Price
- $6.90
- Rating
- 4.4/5
- Reviews
- 63
- Age
- 8mo ago

6pcs Updated Silicone Flange Insert 16mm Compatible with Momcozy/Medela/Spectra/Eufy/Lansinoh/TSRETE/Elvie/NCVI/Paruu Breast Pump for 24mm Flange/Shield Breastfeeding Essential Replacement Pump Part
- Price
- $9.91
- Rating
- 4.2/5
- Reviews
- 169
- Age
- 10mo ago

MOOMentaneous 16mm Oval Flanges Breast Pump Parts Compatible with Medela Breast Pumps PersonalFit Maxflow Freestyle Flex Swing Maxi Connector
- Price
- $12.61
- Rating
- 4.2/5
- Reviews
- 207
- Age
- 11mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 65% of clicks. Leaders hold, but buyers still shop past them.
Brands
12 rising
Sellers
15
Est. top-5 brand share
88%
Top 20: 100%
Est. top-5 click share
65%
Top 20: 96%
Open market
9%
- Maymom32%
- BDICOVE23%
- TOVVILD14%
- Momstouch13%
- IVARONAL5%
- Nuliie3%
- Open — no brand owns it (6 brands, 9%)
Demand
16mm Flange Inserts search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jun · busiest ÷ quietest = 1.7×
Search terms
Top 16mm Flange Inserts search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- 16mm flange inserts18K/yr
- 16 mm flange insert15K/yr
- 16mm flange spectra11K/yr
- spectra flange 16mm9K/yr
- spectra 16mm flange6K/yr
- 16 mm flange spectra6K/yr
- 16mm flange5K/yr
- size 16 flange insert3K/yr
- 16 mm flange3K/yr
- spectra 16 mm flange set3K/yr
Reviews and returns
What reviews say buyers love and hate about 16mm Flange Inserts
We read the reviews and the return reasons for every product selling here.
“These are huge”
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
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 16mm Flange Inserts 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









