medela membranes
Skip itA small market ($41K/yr) — this niche doesn't clear our bar today.
Conversion
Great11.4%search→purchase rate — share of searches ending in a sale
Returns
Great1.5%return rate — above 6% kills the launch gate
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Review moat
Okay1,860.9avg incumbent reviews — the moat a new listing must climb
Avg price
Okay$10.70avg listing price — sweet spot $15–$100
Price range
Okay$5.99–$20.30cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Bad-2.9%90-day search growth — must beat 0% to launch
Brand share
Bad94%top-5 brand share — brand-locked demand
Competition
Bad82%top-5 click share — a locked-up shelf
Market size
Bad$41K$41K/yr · 33K searches
Competition
The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.Brands
7 rising
Sellers
28
Top-5 brand share
94%
Open market
3%
- Medela63%
- PUMPMOM-US14%
- NENESUPPLY8%
- Wevedk5%
- Maymom4%
- IVARONAL4%
- Open — no brand owns it (1 brand, 3%)
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 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Medela Spare Membranes Breast Pump Replacement Parts Made Without BPA Authentic Medela Spart Parts White 6 count(Pack of 1)
Medela$6.654.8★6,126 rev
PumpMom-us Membranes Compatible with Medela Pump Parts Silicone Diaphragm for PersonalFit Flex connectors Replacement Membranes Pump in Style MaxFlow Swing Maxi and Freestyle Flex Parts 2-Pack (2)
PUMPMOM-US$11.544.4★724 rev
Medela Membranes for Hands-Free Collection Cups 2-Pack
Medela$20.304.7★405 rev
Medela Spare Valves and Membranes 2 Sets Authentic Medela Replacement Parts Designed for All Breast Pumps Except Sonata and Freestyle Made Without BPA
Medela$9.564.8★5,346 rev
4pcs Silicone Membranes Compatible with Medela PersonalFit Flex connectors Diaphragm Fit for Pump in Style MaxFlow Swing Maxi and Freestyle Breast Pumps
Wevedk$16.823.7★12 rev
Newest
by launch date4pcs Silicone Membranes Compatible with Medela PersonalFit Flex connectors Diaphragm Fit for Pump in Style MaxFlow Swing Maxi and Freestyle Breast Pumps
Wevedk$16.8212 rev
PumpMom-us Membranes Compatible with Medela Pump Parts Silicone Diaphragm for PersonalFit Flex connectors Replacement Membranes Pump in Style MaxFlow Swing Maxi and Freestyle Flex Parts 2-Pack (2)
PUMPMOM-US$11.54724 rev
2pcs Silicone Membranes Compatible with Medela Pump Parts Pump Replacement Diaphragm for PersonalFit Flex connectors Pump in Style MaxFlow Swing Maxi Freestyle Flex Breast Pumps
IVARONAL$9.9820 rev
Membranes Compatible with Medela Pump Parts 2-Pack BPA Free Silicone Membranes Compatible with PersonalFit Flex connectors Spare Parts 2 Count
Generic$8.3376 rev
Medela Membranes for Hands-Free Collection Cups 2-Pack
Medela$20.30405 rev
Trending
90-day click momentum4pcs Silicone Membranes Compatible with Medela PersonalFit Flex connectors Diaphragm Fit for Pump in Style MaxFlow Swing Maxi and Freestyle Breast Pumps
Wevedk$16.823.7★
2pcs Silicone Membranes Compatible with Medela Pump Parts Pump Replacement Diaphragm for PersonalFit Flex connectors Pump in Style MaxFlow Swing Maxi Freestyle Flex Breast Pumps
IVARONAL$9.984.8★
PumpMom-us Membranes Compatible with Medela Pump Parts Silicone Diaphragm for PersonalFit Flex connectors Replacement Membranes Pump in Style MaxFlow Swing Maxi and Freestyle Flex Parts 2-Pack (2)
PUMPMOM-US$11.544.4★
Nenesupply10 pc Membranes Compatible with Medela Valve and Nenesupply Valve. Not Original Medela Membrane. Compatible with Pump in Style Swing Symphony Harmony Breast Pump
NENESUPPLY$8.004.7★
Medela Spare Membranes Breast Pump Replacement Parts Made Without BPA Authentic Medela Spart Parts White 6 count(Pack of 1)
Medela$6.654.8★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -2.9% search growth over the last 90 days.Peak months: Jan, Jul, Aug, Sep, Oct, Nov, Dec · busiest ÷ quietest = 14.6×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality”
“so it was nice to find an affordable option that still works well with my setup”
“They fit perfectly”
“Exactly as described”
“I love how durable”
“Everything seals properly”
“They are thick”
“Good replacements”
“Cleaning them has also been simple”
“Theyre easy to replace”
What buyers complain about
“Did not work for me”
“Not Compatible”
“Dont fit well”
“Misleading product description”
“Not waste your money on it”
“They are thicker than original Medela membranes”
“the material is too rigid to work correctly with my pump-in-style”
“Poorly made and cheap quality”
“So they are weak for me”