Medela Valves and Membranes Set
FailThe top 5 brands take 100% of clicks, so Medela Valves and Membranes Set is a Fail.
- Flapen Score
- 38 / 100Ranks 1,756 of 2,472 Baby Products niches · −6 vs the category median of 4438
- Market size
- $121K/yr57K searches / yr
- 90-day growth
- -3.3%search demand this quarter
- Competition
- 75%top-5 click share · 4 brands · 15 sellers
Flapen Score
Medela Valves and Membranes Set against its category
The dotted line is the Baby Products average. Past it, Medela Valves and Membranes Set is stronger. Inside it, weaker.
Market
The Medela Valves and Membranes Set market on Amazon at a glance
Shoppers on Amazon United States searched for Medela Valves and Membranes Set 57K times last year and spent an estimated $121K. All 4 brands take every click. Demand peaks in Sep–Oct. Flapen scores it 38 out of 100, a Fail.
01 · Demand
An estimated 9.5% of those searches ended in a purchase.
Shoppers searched for this 57K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 9.5% of those searches ended in a purchase. Searches in the last 90 days moved -3.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated $121K a year.
- Searches, last 12 months
- 57K
- Growth, 90 days vs prior 90
- -3.3%
- Conversion, latest week
- 9.5%
- Market size, estimated
- $121Ka year
- Peak month
- September1.7× the quietest month
- Top search term
- medela symphony pump parts50K searches a year
02 · Price
A sale here is worth $22.37.
Listings sell for $22.37 on average, from $9.56 to $61.24. Amazon reports units sold in ranges. This niche sold 5K to 6K a year. The average listing sells 250 to 500 of them. At $22.37 that is $6K to $11K a year per listing.
- Average price
- $22.37inside the $15 to $100 sweet spot
- Price range
- $9.56–$61.24
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 5K–6K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $6K–$11K
- Returns
- 2.8%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
67% 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 #295 within Breastfeeding. It carries 2,992 reviews at 4.68 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 67%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #295in Breastfeeding
- Average rating
- 4.68 starsAmazon United States average 4.42 stars
- Average reviews
- 2,992per listing
- Listings tracked
- 12
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 55 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
- 55 months
Products
Top Medela Valves and Membranes Set 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
Medela Symphony Breast Pump Kit Double Pumping System Includes Everything Needed to Start Pumping with Symphony Made Without BPA
- Price
- $41.53
- Rating
- 4.7/5
- Reviews
- 1,437
- Age
- 19y ago

Medela Spare Valves and Membranes 2 Sets Authentic Medela Replacement Parts Designed for All Breast Pumps Except Sonata and Freestyle Made Without BPA
- Price
- $9.56
- Rating
- 4.8/5
- Reviews
- 5,346
- Age
- 19y ago

Maymom Pump Parts Compatible with Medela Symphony 19mm Flange (Detachable Shield and Connector) Not Original Medela Symphony Replacement Pump Parts Tube Cap Membrane Valve
- Price
- $26.68
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 9mo ago

Nenesupply Pump Parts with 24mm Flanges Compatible with Medela Pump in Style Parts Accessories Breast Pump Not Original Medela Pump Parts Incl. 24mm Flange Breastshield Connector Valve Membrane Tubing
- Price
- $19.23
- Rating
- 4.6/5
- Reviews
- 1,149
- Age
- 13y ago

2X One-piece Breastshields Valves Membranes Compatible with Medela Pump Parts Pump in Style Lactina Symphony Swing; 24 mm Standard breastshields; Made by Maymom
- Price
- $13.65
- Rating
- 4.4/5
- Reviews
- 6,786
- Age
- 12y ago
Trending
estimated 90-day click momentum
Two Complete Sets Compatible with Medela Symphony Breast Pump Replacement Parts (24mm Two Complete Sets with 17/19/21mm Flanges)
- Price
- $61.24
- Rating
- 4.8/5
- Reviews
- 7
- Age
- 4mo ago

Maymom Pump Parts Compatible with Medela Symphony 19mm Flange (Detachable Shield and Connector) Not Original Medela Symphony Replacement Pump Parts Tube Cap Membrane Valve
- Price
- $26.68
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 9mo ago

Nenesupply Pump Parts with 24mm Flanges Compatible with Medela Pump in Style Parts Accessories Breast Pump Not Original Medela Pump Parts Incl. 24mm Flange Breastshield Connector Valve Membrane Tubing
- Price
- $19.23
- Rating
- 4.6/5
- Reviews
- 1,149
- Age
- 13y ago

2X One-piece Breastshields Valves Membranes Compatible with Medela Pump Parts Pump in Style Lactina Symphony Swing; 24 mm Standard breastshields; Made by Maymom
- Price
- $13.65
- Rating
- 4.4/5
- Reviews
- 6,786
- Age
- 12y ago

Medela Symphony Protective Cap & Membranes.
- Price
- $26.64
- Rating
- 4.6/5
- Reviews
- 55
- Age
- 12y ago
Newest
by launch date
Two Complete Sets Compatible with Medela Symphony Breast Pump Replacement Parts (24mm Two Complete Sets with 17/19/21mm Flanges)
- Price
- $61.24
- Rating
- 4.8/5
- Reviews
- 7
- Age
- 4mo ago

Maymom Pump Parts Compatible with Medela Symphony 19mm Flange (Detachable Shield and Connector) Not Original Medela Symphony Replacement Pump Parts Tube Cap Membrane Valve
- Price
- $26.68
- Rating
- 5.0/5
- Reviews
- 1
- Age
- 9mo ago

Nenesupply Membranes Valves Compatible with Medela Breast Pump Parts Not Original Medela Membrane Replacement Parts Accessories Compatible with Pump in Style Parts Symphony Harmony Hand Pump
- Price
- $9.86
- Rating
- 4.7/5
- Reviews
- 2,585
- Age
- 12y ago

2X One-piece Breastshields Valves Membranes Compatible with Medela Pump Parts Pump in Style Lactina Symphony Swing; 24 mm Standard breastshields; Made by Maymom
- Price
- $13.65
- Rating
- 4.4/5
- Reviews
- 6,786
- Age
- 12y ago

Medela Symphony Protective Cap & Membranes.
- Price
- $26.64
- Rating
- 4.6/5
- Reviews
- 55
- Age
- 12y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 75% of clicks. A locked shelf that new listings rarely crack.
Brands
4 rising
Sellers
15
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
75%
Top 20: 100%
Open market
0%
- Medela67%
- Maymom17%
- NENESUPPLY14%
- CozyBabe3%
Demand
Medela Valves and Membranes Set search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Sep, Oct · busiest ÷ quietest = 1.7×
Search terms
Top Medela Valves and Membranes Set search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- medela symphony pump parts50K/yr
- medela symphony parts4K/yr
- medela pump parts symphony3K/yr
Reviews and returns
What reviews say buyers love and hate about Medela Valves and Membranes Set
We read the reviews and the return reasons for every product selling here.
“is not compatible”
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.
17 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 Medela Valves and Membranes Set 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









