17mm Flange Insert
a concentrated shelf (top 5 take 81% of clicks) — 17mm Flange Insert doesn't clear our bar today.
Flapen Score
Ranks 1,756 of 2,472 Baby Products niches · −6 vs the category median of 44
Is 17mm Flange Insert profitable on Amazon?
According to Flapen's Amazon United States niche tracking, 17mm Flange Insert is a $150K/yr Amazon United States market (89K searches/yr). The top 5 brands hold 84% of demand. Verdict: Skip it — 38/100.
17mm Flange Insert: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved +7.3% over the last 90 days and 15.5% of searches end in a purchase.
$150K
revenue / yr
Who owns the niche?
The top 5 brands hold 84% of demand, so 16% of the market is open.
16%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.5★ — the gap to enter on.
0/100
page quality · 12 products
Top 17mm Flange Insert 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
Suniceme Flange Inserts 17mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges Reduce 24mm Nipple Tunnel Down to 17 mm 4PCS
- Price
- $8.02
- Rating
- 4.5/5
- Reviews
- 971
- Age
- 2y ago

17mm Flange Insert 6PC Compatible with 17mm Flange Spectra/Flange Inserts for Spectra/Momcozy Flange Inserts/Momcozy Wearable Breast Pump Flange Insert/Flange Inserts for Medela Pump/Willow/TSRETE
- Price
- $9.99
- Rating
- 4.5/5
- Reviews
- 562
- Age
- 2y ago

Flange Inserts 17mm 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
- $8.00
- Rating
- 4.6/5
- Reviews
- 347
- Age
- 2y ago

4Pcs Breast Pump Flange Insert 17mm 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
- $7.87
- Rating
- 4.5/5
- Reviews
- 635
- Age
- 1y ago

Maymom Flange 17mm Insert Compatible with Medela/Spectra/Elvie/momcozy/tsrete/Willow/Motif Luna/Ameda MYA Breastpump 24mm Breast Shields. Reduce 24mm Niple Tunnel Down to 17mm
- Price
- $14.70
- Rating
- 4.5/5
- Reviews
- 3,517
- Age
- 3y ago
Trending
90-day click momentum
2PCS Flange Insert 17mm Compatible with Medela/Spectra/Willow/TSRETE/Momcozy S9/S12/S9Pro/S12Pro Breastpump 24mm Shields Reduce 24mm Nipple Tunnel Down to Correct Size Pump Parts Replace
- Price
- $6.58
- Rating
- 4.6/5
- Reviews
- 1,019
- Age
- 4y ago

4Pcs Breast Pump Flange Insert 17mm 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
- $7.87
- Rating
- 4.5/5
- Reviews
- 635
- Age
- 1y ago

Momstouch 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Pump Parts Not Original Replace Accessories.
- Price
- $16.78
- Rating
- 4.3/5
- Reviews
- 592
- Age
- 11mo ago

Flange Inserts 17mm 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
- $8.00
- Rating
- 4.6/5
- Reviews
- 347
- Age
- 2y ago

Nursi Luna Flange Inserts 10PCS 13/15/17/19/21mm for 24mm Flanges/Shield of Most Pumps Flange Sizing Kit Silicone Flanges Insert Breastfeeding Essentials Kit for New Moms
- Price
- $10.05
- Rating
- 4.6/5
- Reviews
- 2,006
- Age
- 2y ago
Newest
by launch date
Momstouch 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Pump Parts Not Original Replace Accessories.
- Price
- $16.78
- Rating
- 4.3/5
- Reviews
- 592
- Age
- 11mo ago

4Pcs Breast Pump Flange Insert 17mm 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
- $7.87
- Rating
- 4.5/5
- Reviews
- 635
- Age
- 1y ago

Suniceme Flange Inserts 17mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges Reduce 24mm Nipple Tunnel Down to 17 mm 4PCS
- Price
- $8.02
- Rating
- 4.5/5
- Reviews
- 971
- Age
- 2y ago

Nursi Luna Flange Inserts 10PCS 13/15/17/19/21mm for 24mm Flanges/Shield of Most Pumps Flange Sizing Kit Silicone Flanges Insert Breastfeeding Essentials Kit for New Moms
- Price
- $10.05
- Rating
- 4.6/5
- Reviews
- 2,006
- Age
- 2y ago

Nuliie 8PCS Silicone Flanges Insert Replacement Kit Flange Sizing Kit 17mm for 24mm Flange/Shield Breast Pumps Pumping Essential Kit for Moms
- Price
- $8.46
- Rating
- 4.6/5
- Reviews
- 4,179
- Age
- 2y ago
Competition: brands, sellers & click share
The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.
Brands
9 falling
Sellers
11
Top-5 brand share
84%
Top 20: 100%
Top-5 click share
81%
Top 20: 100%
Open market
10%
- Suniceme37%
- Hranio30%
- Momstouch6%
- Maymom6%
- Nuliie6%
- GOCROWEEN5%
- Open — no brand owns it (3 brands, 10%)
17mm Flange Insert demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.5×
Top 17mm Flange Insert search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- 17mm flange insert49K/yr
- 17 mm flange inserts28K/yr
- size 17 flange inserts5K/yr
- flange inserts 17mm3K/yr
- 17 flange inserts2K/yr
- 17mm flange insert spectra2K/yr
What reviews say buyers love and hate about 17mm Flange Insert
What buyers mention most, as a share of all reviews.
What buyers love
89% of reviews“Sizing seemed accurate”
“One thing that really stood out to me was how well-made”
“Great price”
“They are very comfortable”
“The little cleaning sponge is wonderful”
What buyers complain about
69% of reviews“Need more sizes”
“Got sent used & dirty flanges”
“Would expect higher quality control from a company who is knowingly serving pregnant and postpartum women”
“one of the flange inserts tore right apart immediately after opening”
“Incompatible with Elvie Stride”
17mm Flange Insert return rate & reasons
Why buyers send it back, as a share of all return requests.
3.9%
Return rate
73%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common 17mm Flange Insert questions
The questions sellers ask about this niche, answered from the tracked metrics.
Best Flapen score
The highest-scoring niches we track right now, across every category.









