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
Returns
Bad6.1%return rate — above 6% kills the launch gate
Competition
Bad71%top-5 click share — a locked-up shelf
Brand share
Bad94%top-5 brand share — brand-locked demand
Growth
Bad-21.8%90-day search growth — must beat 0% to launch
Competition
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%
Open market
4%
- Maymom66%
- Hranio12%
- Momstouch9%
- CubCare4%
- PUMPMOM-US3%
- BALIME2%
- Open — no brand owns it (2 brands, 4%)
Product shelf
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★
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×
Reviews
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”