19mm Flange
FailThe top 5 brands take 97% of clicks, so 19mm Flange is a Fail.
- Flapen Score
- 42 / 100Ranks 1,406 of 2,472 Baby Products niches · −2 vs the category median of 4442
- Market size
- $513K/yr298K searches / yr
- 90-day growth
- -16.8%search demand this quarter
- Competition
- 64%top-5 click share · 7 brands · 9 sellers
Flapen Score
19mm Flange against its category
The dotted line is the Baby Products average. Past it, 19mm Flange is stronger. Inside it, weaker.
Market
The 19mm Flange market on Amazon at a glance
Shoppers on Amazon United States searched for 19mm Flange 298K times last year and spent an estimated $513K. The top 5 brands take 97% of clicks. Demand peaks in Jan. Flapen scores it 42 out of 100, a Fail.
01 · Demand
An estimated 10.1% of those searches ended in a purchase.
Shoppers searched for this 298K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 10.1% of those searches ended in a purchase. Searches in the last 90 days moved -16.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated $513K a year.
- Searches, last 12 months
- 298K
- Growth, 90 days vs prior 90
- -16.8%
- Conversion, latest week
- 10.1%
- Market size, estimated
- $513Ka year
- Peak month
- January1.9× the quietest month
- Top search term
- maymom spectra parts73K searches a year
02 · Price
A sale here is worth $17.16.
Listings sell for $17.16 on average, from $8.00 to $32.53. Amazon reports units sold in ranges. This niche sold 30K to 40K a year. The average listing sells 2,000 to 2,500 of them. At $17.16 that is $34K to $43K a year per listing.
- Average price
- $17.16inside the $15 to $100 sweet spot
- Price range
- $8.00–$32.53
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 30K–40K
- Units per listing a year
- 2,000–2,500
- Revenue per listing a year
- $34K–$43K
- Returns
- 4.8%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads and reviews.
100% 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 #60 within Breastfeeding. It carries 3,967 reviews at 4.53 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 100%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #60in Breastfeeding
- Average rating
- 4.53 starsAmazon United States average 4.42 stars
- Average reviews
- 3,967per listing
- Listings tracked
- 19
04 · Newcomers
0 of last year's 2 launches cleared the first-year sales bar.
2 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 41 months on average, so the names here are settling in.
- Launched, last 12 months
- 2
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 41 months
Products
Top 19mm Flange 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
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
estimated 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 date
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

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
Competition: brands, sellers & click share
The top 5 products take an estimated 64% of clicks. Leaders hold, but buyers still shop past them.
Brands
7 rising
Sellers
9
Est. top-5 brand share
97%
Top 20: 100%
Est. 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%)
Demand
19mm Flange search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan · busiest ÷ quietest = 1.9×
Search terms
Top 19mm Flange search terms shoppers use
The exact words shoppers type, with estimated 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
Reviews and returns
What reviews say buyers love and hate about 19mm Flange
We read the reviews and the return reasons for every product selling here.
“Way too big”
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 19mm Flange 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









