Is medela membranes profitable to sell on Amazon United States?

The niche generates $41K/yr across 10 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -2.9%. Flapen's verdict: Skip it (38/100).

How competitive is the medela membranes niche?

7 brands and 28 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 94% of demand.

What do buyers complain about in medela membranes?

Top complaints mined from reviews: Functionality-Overall, Compatibility-Overall, Size-Overall. The return rate is 1.5%.

When does demand for medela membranes peak?

Demand peaks in Jan–Jul–Aug–Sep–Oct–Nov–Dec; the busiest month runs 14.6× the quietest.

What does it cost to enter the medela membranes niche?

Listings span $5.99–$20.30; the average listing price is $10.70 (sweet spot $15–$100). The average incumbent carries 1,861 reviews — the moat a new listing must climb.

medela membranes

Skip it

A 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 5% kills the launch gate

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Review moat

Okay1,860.9

avg incumbent reviews — the moat a new listing must climb

Avg price

Okay$10.70

avg listing price — sweet spot $15–$100

Price range

Okay$5.99–$20.30

cheapest 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

According to Flapen's Amazon United States niche tracking, medela membranes is a $41K/yr Amazon United States market (33K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Jan–Jul–Aug–Sep–Oct–Nov–Dec. Verdict: Skip it — 38/100.

Data updated Jul 12, 2026 · scored weekly · How we score niches

medela membranes market data

Units sold / yr: 4K–5K; avg 250–500/product
Revenue / yr: $43K–$54K; units × avg price
Conversion rate: 11.4%
Avg BSR: #251
Page quality: 0%
Prime: 100%
Sponsored: 70%
Out of stock: 1.3%
Avg brand age: 58 months
Avg seller age: 169 days

Competition & brand share

The top 5 products capture 82% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 rising

Sellers

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

82%

Top 20: 100%

Open market

Medela63%
PUMPMOM-US14%
NENESUPPLY8%
Wevedk5%
Maymom4%
IVARONAL4%
Open — no brand owns it (1 brand, 3%)

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×

Open Trend

Top medela membranes search terms

medela membranes16K/yr +20.6%8.2% conv.
medela membrane replacement10K/yr -36.8%14.6% conv.
medela membrane2K/yr +1.9%11.9% conv.
medela pump membranes3K/yr -14.1%23.3% conv.
medela pump in style membranes3K/yr -25.8%10.5% conv.

All search terms

Top medela membranes 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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 date

4pcs 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

5mo ago

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

9mo ago

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

9mo ago

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

1y ago

Medela Membranes for Hands-Free Collection Cups 2-Pack

Medela$20.30405 rev

2y ago

What buyers say about medela membranes

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall28%

“Good quality”

Value For Money19%

“so it was nice to find an affordable option that still works well with my setup”

Size-Overall18%

“They fit perfectly”

Advertised Vs Actual Product10%

“Exactly as described”

Durability6%

“I love how durable”

Leak-Proof4%

“Everything seals properly”

Thickness3%

“They are thick”

Maintenance And Repair3%

“Good replacements”

Ease Of Cleaning2%

“Cleaning them has also been simple”

Ease Of Use2%

“Theyre easy to replace”

What buyers complain about

Functionality-Overall27%

“Did not work for me”

Compatibility-Overall23%

“Not Compatible”

Size-Overall12%

“Dont fit well”

Advertised Vs Actual Product9%

“Misleading product description”

Value For Money5%

“Not waste your money on it”

Thickness5%

“They are thicker than original Medela membranes”

Material Quality5%

“the material is too rigid to work correctly with my pump-in-style”

Quality-Overall5%

“Poorly made and cheap quality”

Strength5%

“So they are weak for me”

Top return reasons

Size-Overall33%

Functionality-Overall13%

Advertised Vs Actual Product12%

Defective Material/Parts10%

Compatibility-Overall9%

Product Condition5%

Value For Money4%

Filtration3%

Durability2%

Quality-Overall2%

Common questions

Is medela membranes profitable to sell on Amazon United States?: The niche generates $41K/yr across 10 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -2.9%. Flapen's verdict: Skip it (38/100).
How competitive is the medela membranes niche?: 7 brands and 28 sellers compete. The top 5 products take 82% of clicks and top 5 brands hold 94% of demand.
What do buyers complain about in medela membranes?: Top complaints mined from reviews: Functionality-Overall, Compatibility-Overall, Size-Overall. The return rate is 1.5%.
When does demand for medela membranes peak?: Demand peaks in Jan–Jul–Aug–Sep–Oct–Nov–Dec; the busiest month runs 14.6× the quietest.
What does it cost to enter the medela membranes niche?: Listings span $5.99–$20.30; the average listing price is $10.70 (sweet spot $15–$100). The average incumbent carries 1,861 reviews — the moat a new listing must climb.