Eufy Duckbill Valve
FailThe top 5 brands take 94% of clicks, so Eufy Duckbill Valve is a Fail.
- Flapen Score
- 46 / 100Top 41% of 2,472 Baby Products niches · +2 vs the category median of 4446
- Market size
- $68K/yr30K searches / yr
- 90-day growth
- -13.4%search demand this quarter
- Competition
- 82%top-5 click share · 7 brands · 9 sellers
Flapen Score
Eufy Duckbill Valve against its category
The dotted line is the Baby Products average. Past it, Eufy Duckbill Valve is stronger. Inside it, weaker.
Market
The Eufy Duckbill Valve market on Amazon at a glance
Shoppers on Amazon United States searched for Eufy Duckbill Valve 30K times last year and spent an estimated $68K. The top 5 brands take 94% of clicks. Flapen scores it 46 out of 100, a Fail.
01 · Demand
An estimated 17.0% of those searches ended in a purchase.
Shoppers searched for this 30K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 17.0% of those searches ended in a purchase. Searches in the last 90 days moved -13.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $68K a year.
- Searches, last 12 months
- 30K
- Growth, 90 days vs prior 90
- -13.4%
- Conversion, latest week
- 17.0%
- Market size, estimated
- $68Ka year
- Top search term
- eufy duckbill valve18K searches a year
02 · Price
A sale here is worth $13.45.
Listings sell for $13.45 on average, from $8.11 to $19.44. Amazon reports units sold in ranges. This niche sold 5K to 6K a year. The average listing sells 500 to 750 of them. At $13.45 that is $7K to $10K a year per listing.
- Average price
- $13.45under the $15 to $100 sweet spot
- Price range
- $8.11–$19.44
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 5K–6K
- Units per listing a year
- 500–750
- Revenue per listing a year
- $7K–$10K
- Returns
- 1.5%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
91% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 12.5% of listings are out of stock. The average listing ranks #190 within Breastfeeding. It carries 128 reviews at 4.11 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 91%
- Prime listings
- 100%
- Out of stock, average day
- 12.5%
- Average rank
- #190in Breastfeeding
- Average rating
- 4.11 starsAmazon United States average 4.42 stars
- Average reviews
- 128per listing
- Listings tracked
- 11
04 · Newcomers
3 of last year's 7 launches cleared the first-year sales bar.
7 products launched here in the last 12 months. 3 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 25 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 7
- Successful launches
- 3Amazon's first-year sales bar
- Average brand age
- 25 months
Products
Top Eufy Duckbill Valve 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
eufy Security Original Duckbill Valves (4-Pack) for Wearable Breast Pump E10/E20/S1/S1 Pro Leak-Proof and Dust-Proof Breast Pump Replacement Parts
- Price
- $18.61
- Rating
- 4.6/5
- Reviews
- 294
- Age
- 2y ago

TOVVILD 8PCS Duckbill Valves Compatible with eufy E10 E20 S1 S1 Pro MomMed S21 S32 Breast Pump Replacement Pump Parts Accessories
- Price
- $9.53
- Rating
- 4.4/5
- Reviews
- 264
- Age
- 1y ago

TOVVILD 12PCS Duckbill Valves Silicone Diaphragms Compatible with eufy E10/E20/S1/S1 Pro Replacement Parts Wearable Breast Pump Accessories
- Price
- $19.44
- Rating
- 4.1/5
- Reviews
- 123
- Age
- 1y ago

8pcs Replacement Parts for eufy Breast Pump 4 Silicone Diaphragms & 4 Duckbill Valves Accessories Kit Compatible with eufy S1 Pro S1 E10 E20 Wearable Breast Pump
- Price
- $14.08
- Rating
- 4.6/5
- Reviews
- 36
- Age
- 6mo ago

Breast Pump Replacement Parts Kit Compatible with Eufy Electric Wearable Breast Pumps E10 / E20 / S1 / S1 Pro 10PCS Includes 4 Spout Caps 4 Duckbill Valves & 2 Silicone Diaphragms BPA Free
- Price
- $10.05
- Rating
- 3.9/5
- Reviews
- 53
- Age
- 6mo ago
Trending
estimated 90-day click momentum
8pcs Duckbill Valves and 4pcs Silicone Diaphragm Compatible with eufy S1 Pro/S1/E10/E20 Wearable Breast Pump Replace for eufy Pump Parts Not Original Parts
- Price
- $15.09
- Rating
- 4.1/5
- Reviews
- 164
- Age
- 5mo ago

Breast Pump Replacement Parts Kit Compatible with Eufy Electric Wearable Breast Pumps E10 / E20 / S1 / S1 Pro 10PCS Includes 4 Spout Caps 4 Duckbill Valves & 2 Silicone Diaphragms BPA Free
- Price
- $10.05
- Rating
- 3.9/5
- Reviews
- 53
- Age
- 6mo ago

8pcs Replacement Parts for eufy Breast Pump 4 Silicone Diaphragms & 4 Duckbill Valves Accessories Kit Compatible with eufy S1 Pro S1 E10 E20 Wearable Breast Pump
- Price
- $14.08
- Rating
- 4.6/5
- Reviews
- 36
- Age
- 6mo ago

4pcs Replacement Valves & 4pcs Spout Caps for eufy Wearable Breast Pump E10/S1/S1 Pro Soft Silicone Duckbill Valves Breast Pump Parts BPA-Free Replacement Accessories Kit
- Price
- $8.11
- Rating
- 3.4/5
- Reviews
- 5
- Age
- 5mo ago

12pcs Breast Pump Parts Replacement for eufy Includes 4 Silicone Diaphragms 4 Duckbill Valves & Nozzle Covers Accessories Kit Compatible with eufy S1 Pro/S1/E10/E20
- Price
- $14.11
- Rating
- 3.7/5
- Reviews
- 17
- Age
- 5mo ago
Newest
by launch date
4pcs Replacement Valves & 4pcs Spout Caps for eufy Wearable Breast Pump E10/S1/S1 Pro Soft Silicone Duckbill Valves Breast Pump Parts BPA-Free Replacement Accessories Kit
- Price
- $8.11
- Rating
- 3.4/5
- Reviews
- 5
- Age
- 5mo ago

8pcs Duckbill Valves and 4pcs Silicone Diaphragm Compatible with eufy S1 Pro/S1/E10/E20 Wearable Breast Pump Replace for eufy Pump Parts Not Original Parts
- Price
- $15.09
- Rating
- 4.1/5
- Reviews
- 164
- Age
- 5mo ago

10pcs Breastpump Kits 6pcs Duckbill Valves and 4pcs Silicone Diaphragms Compatible with eufy S1 Pro/S1/E10/E20 Pump Replace for Lansinoh Discreet Duo/NCVI/NICEGREEN/Nuliie/Zooawa S32 Model Pump
- Price
- $15.85
- Rating
- 4.1/5
- Reviews
- 279
- Age
- 5mo ago

12pcs Breast Pump Parts Replacement for eufy Includes 4 Silicone Diaphragms 4 Duckbill Valves & Nozzle Covers Accessories Kit Compatible with eufy S1 Pro/S1/E10/E20
- Price
- $14.11
- Rating
- 3.7/5
- Reviews
- 17
- Age
- 5mo ago

Breast Pump Replacement Parts Kit Compatible with Eufy Electric Wearable Breast Pumps E10 / E20 / S1 / S1 Pro 10PCS Includes 4 Spout Caps 4 Duckbill Valves & 2 Silicone Diaphragms BPA Free
- Price
- $10.05
- Rating
- 3.9/5
- Reviews
- 53
- Age
- 6mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 82% of clicks. A locked shelf that new listings rarely crack.
Brands
7 rising
Sellers
9
Est. top-5 brand share
94%
Top 20: 100%
Est. top-5 click share
82%
Top 20: 100%
Open market
3%
- eufy Security43%
- TOVVILD33%
- Goktvai10%
- seatenwell4%
- Fukaisu4%
- BDICOVE3%
- Open — no brand owns it (1 brand, 3%)
Demand
Eufy Duckbill Valve search demand
Weekly searches over the year. Pick a range.
Search terms
Top Eufy Duckbill Valve search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- eufy duckbill valve18K/yr
- eufy s1 duckbill valve4K/yr
- eufy duckbill replacement3K/yr
- eufy s1 pro duckbill valve4K/yr
Reviews and returns
What reviews say buyers love and hate about Eufy Duckbill Valve
We read the reviews and the return reasons for every product selling here.
“waste of money”
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.
16 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 Eufy Duckbill Valve 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









