19mm Flange
brand-locked demand (top 5 brands take 97% of clicks) — 19mm Flange doesn't clear our bar today.
Flapen Score
Ranks 1,406 of 2,472 Baby Products niches · −2 vs the category median of 44
Is 19mm Flange profitable on Amazon?
According to Flapen's Amazon United States niche tracking, 19mm Flange is a $513K/yr Amazon United States market (298K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Jan. Verdict: Skip it — 42/100.
19mm Flange: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved -16.8% over the last 90 days and 10.1% of searches end in a purchase.
$513K
revenue / yr
Who owns the niche?
The top 5 brands hold 97% of demand, so 3% of the market is open.
3%
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 · 19 products
Top 19mm Flange 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
Maymom 19mm Flange and Duckbill Valve Compatible with Spectra S1 S2 Breastpump Not Original S2 Accessories Not Original Spectra Replacement Duckbill Valve and Flange
- Price
- $18.75
- Rating
- 4.6/5
- Reviews
- 6,022
- Age
- 6y ago
Maymom Pump Parts Compatible with Spectra S2 S1 Replacement Kit for Spectra Pump Parts 24 mm Flange Duckbill Valve Tube Bottle Backflow Protector Not Original S2 S1 Accessories
- Price
- $32.53
- Rating
- 4.6/5
- Reviews
- 9,124
- Age
- 7y ago
Maymom Wide Neck Pump Part Compatible with Spectra S1/S2 Pumps; Incl Wide Mouth Flange; Not Original Spectra Flange; Replaces Shield (19 mm Two Flanges)
- Price
- $16.63
- Rating
- 4.7/5
- Reviews
- 7,932
- Age
- 8y ago
17mm 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
Hranio Breast Pump Parts Compatible with 19mm Spectra Flange 19mm Spectra Replacement Pump Parts s1 s2 (Flange 19mm 2 Pcs)
- Price
- $9.83
- Rating
- 4.5/5
- Reviews
- 217
- Age
- 2y ago
Trending
90-day click momentum
Momstouch 19mm Flange Compatible with Spectra S1 S2 9 Plus Synergy Gold Breastpump Replacement to Spectra Pump Parts and Flange; Not Original; Replaces Shield
- Price
- $15.67
- Rating
- 4.6/5
- Reviews
- 301
- Age
- 2y ago
BALIME 19MM Wide-Mouth Flange Spectra Replacement Pump Parts for S1 S2 - BPA Free Spectra Replacement Pump Parts - Perfect for Travel & Working Moms (2-Pack)
- Price
- $8.25
- Rating
- 4.4/5
- Reviews
- 129
- Age
- 11mo ago
Momstouch 19mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Spectra Pump Parts Not Original Replace Accessories.
- Price
- $16.71
- Rating
- 4.3/5
- Reviews
- 592
- Age
- 2y ago
PumpMom-us 19mm Soft Rim Flanges Compatible with Spectra S2 S1 9 Plus Breastpumps Accessories Replacement Breast Shield and Duckbill Valves for Spectra Pump Parts and 19 Flange
- Price
- $16.80
- Rating
- 4.4/5
- Reviews
- 915
- Age
- 2y ago
Maymom 19mm MyFit Shields Pano Series; Compatible with Medela Breast Pump- PersonalFit Freestyle Harmony Maxi Freestyle Flex Connector; Connect to Maymom Widemouth/Narrow Connector 2pcs
- Price
- $15.49
- Rating
- 4.5/5
- Reviews
- 8,889
- Age
- 3y ago
Newest
by launch dateBALIME 19MM Wide-Mouth Flange Spectra Replacement Pump Parts for S1 S2 - BPA Free Spectra Replacement Pump Parts - Perfect for Travel & Working Moms (2-Pack)
- Price
- $8.25
- Rating
- 4.4/5
- Reviews
- 129
- Age
- 11mo ago
Flange Inserts for Spectra Spectra Replacement Pump Parts for S1/S2/9 Plus Not Original Accessories Breast Pump Parts Include 2-Pack 19MM Flanges and 4-Pack Duckbill Valves
- Price
- $9.74
- Rating
- 4.4/5
- Reviews
- 119
- Age
- 11mo ago
Hranio Breast Pump Parts Compatible with 19mm Spectra Flange 19mm Spectra Replacement Pump Parts s1 s2 (Flange 19mm 2 Pcs)
- Price
- $9.83
- Rating
- 4.5/5
- Reviews
- 217
- Age
- 2y ago
PumpMom-us 19mm Soft Rim Flanges Compatible with Spectra S2 S1 9 Plus Breastpumps Accessories Replacement Breast Shield and Duckbill Valves for Spectra Pump Parts and 19 Flange
- Price
- $16.80
- Rating
- 4.4/5
- Reviews
- 915
- Age
- 2y ago
Flange Inserts 19mm Compatible with Medela/Spectra/TSRETE/Elvie/Momcozy/Bellababy Breast Pump 24mm Shields/Flanges Reduce 24mm Nipple Tunnel Down to 19 mm 4PCS
- Price
- $8.00
- Rating
- 4.5/5
- Reviews
- 971
- Age
- 2y ago
Competition: brands, sellers & click share
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.
Brands
7 rising
Sellers
9
Top-5 brand share
97%
Top 20: 100%
Top-5 click share
64%
Top 20: 100%
Open market
2%
- Maymom77%
- Hranio8%
- Momstouch6%
- CubCare3%
- PUMPMOM-US2%
- BALIME2%
- Open — no brand owns it (1 brand, 2%)
19mm Flange demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Jan · busiest ÷ quietest = 1.9×
Top 19mm Flange search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- maymom spectra parts73K/yr
- maymom flange49K/yr
- maymom32K/yr
- 19mm flange spectra34K/yr
- spectra flange 19mm25K/yr
- 19 mm flange spectra21K/yr
- spectra 19mm flange set17K/yr
- 19mm flange10K/yr
- spectra 19mm flange7K/yr
- maymom flanges6K/yr
What reviews say buyers love and hate about 19mm Flange
What buyers mention most, as a share of all reviews.
What buyers love
83% of reviews“Fit me and the pump”
“Worth it”
“High quality loved the storage case”
“they work great with mine”
“does what it is intended to do”
What buyers complain about
83% of reviews“Way too big”
“the flanges did not seem like they should have made it past quality control”
“pretty useless when the bottles dont really connect”
“Breaks easily”
“Did not work”
19mm Flange return rate & reasons
Why buyers send it back, as a share of all return requests.
4.8%
Return rate
82%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common 19mm Flange 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.
