spectra replacement pump parts 19mm
Skip itSoft demand (-21.8% this quarter) — this niche doesn't clear our bar today.
Conversion
Incredible13.5%search→purchase rate — share of searches ending in a sale
Avg price
Great$15.25avg listing price — sweet spot $15–$100
Price range
Good$8.00–$32.52cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$396K$396K/yr · 193K searches
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay3,386.07avg incumbent reviews — the moat a new listing must climb
Competition
Bad71%top-5 click share — a locked-up shelf
Returns
Bad6.1%return rate — above 5% kills the launch gate
Brand share
Bad94%top-5 brand share — brand-locked demand
Growth
Bad-21.8%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, spectra replacement pump parts 19mm is a $396K/yr Amazon United States market (193K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Mar–Apr–May–Jun. Verdict: Skip it — 40/100.
Data updated Jul 12, 2026 · scored weekly · How we score niches
spectra replacement pump parts 19mm market data
- Units sold / yr
- 25K–30K
- avg 2,000–2,500/product
- Revenue / yr
- $381K–$458K
- units × avg price
- Conversion rate
- 13.5%
- Avg BSR
- #61
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.0%
- Avg brand age
- 37 months
- Avg seller age
- 145 days
Competition & brand share
The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.Brands
8 rising
Sellers
9
Top-5 brand share
94%
Top 20: 100%
Top-5 click share
71%
Top 20: 100%
Open market
4%
- Maymom66%
- Hranio12%
- Momstouch9%
- CubCare4%
- PUMPMOM-US3%
- BALIME2%
- Open — no brand owns it (2 brands, 4%)
Demand & seasonality
Weekly Amazon search volume, last 84 weeks — -21.8% search growth over the last 90 days.Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 9.3×
Top spectra replacement pump parts 19mm search terms
- maymom flange49K/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
- 19 mm flange4K/yr
- 19mm spectra flange3K/yr
Top spectra replacement pump parts 19mm products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 15 tracked products in this niche — three views at once, no toggling.
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
Maymom$18.754.6★6,022 rev
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)
Maymom$16.634.7★7,932 rev
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
Maymom$15.534.5★8,889 rev
Hranio Breast Pump Parts Compatible with 19mm Spectra Flange 19mm Spectra Replacement Pump Parts s1 s2 (Flange 19mm 2 Pcs)
Hranio$9.834.5★217 rev
Momstouch 19mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Spectra Pump Parts Not Original Replace Accessories.
Momstouch$16.714.3★592 rev
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)
BALIME$8.25129 rev
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
CubCare$9.74119 rev
GOTOCUT 4PCS 19mm Breast Pump Flanges Compatible with Spectra S1/S2/9Plus/Synergy Gold Motif Luna Wide-Mouth Bottle Fit Breast Pump Accessories
Gotocut$15.17107 rev
Hranio Breast Pump Parts Compatible with 19mm Spectra Flange 19mm Spectra Replacement Pump Parts s1 s2 (Flange 19mm 2 Pcs)
Hranio$9.83217 rev
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
PUMPMOM-US$16.80915 rev
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
Momstouch$15.674.6★
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)
BALIME$8.254.4★
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
Maymom$15.494.5★
Momstouch 19mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Spectra Pump Parts Not Original Replace Accessories.
Momstouch$16.714.3★
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
PUMPMOM-US$16.804.4★
What buyers say about spectra replacement pump parts 19mm
What buyers praise and complain about, mined from review topics.What buyers love
“Fit me and the pump”
“High quality loved the storage case”
“So comfortable”
“does what it is intended to do”
“Great price”
“I used them throughout my pumping, and they worked great, no issues, and came clean easily with Dawn soap, even when there was coconut oil or nipple cream on the flanges”
“Maymom flange fits perfect with their flange adapter for spectra s2”
“was brand new”
“Medela Pump Friendly & Bottle Washer Friendly”
“Sturdy Flanges, fits spectra pump perfectly”
What buyers complain about
“Way too big”
“pretty useless when the bottles dont really connect”
“the flanges did not seem like they should have made it past quality control”
“Seems to be this flange is defective”
“it broke already”
“imo these are basically $20 trash not $40 worth of savings. actual spectra parts I think are like $60”
“Arrived used”
“Does not really fit the spectra like advertised”
“spilled milk so many times”
“With two less things to clean”
Top return reasons
Common questions
- Is spectra replacement pump parts 19mm profitable to sell on Amazon United States?
- The niche generates $396K/yr across 15 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -21.8%. Flapen's verdict: Skip it (40/100).
- How competitive is the spectra replacement pump parts 19mm niche?
- 8 brands and 9 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 94% of demand.
- What do buyers complain about in spectra replacement pump parts 19mm?
- Top complaints mined from reviews: Size-Overall, Connectivity-Overall, Quality-Overall. The return rate is 6.1% — above our launch gate.
- When does demand for spectra replacement pump parts 19mm peak?
- Demand peaks in Mar–Apr–May–Jun; the busiest month runs 9.3× the quietest.
- What does it cost to enter the spectra replacement pump parts 19mm niche?
- Listings span $8.00–$32.52; the average listing price is $15.25 (sweet spot $15–$100). The average incumbent carries 3,386 reviews — the moat a new listing must climb.