---
title: "Spectra Duckbill Valve — $805K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/baby-products/spectra-duckbill-valve"
last_updated: "2026-08-09T06:23:29.632Z"
locale: en
meta:
description: "Niche score 46/100 · $805K/yr market · 401K searches/yr · $12.26 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $805K/yr market · 401K searches/yr · $12.26 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Spectra Duckbill Valve — $805K/yr Amazon US Niche (2026) - Flapen"
---
# **spectra duckbill valve**
**Skip it**
Brand-locked demand (top 5 brands take 99% of clicks) — this niche doesn't clear our bar today.
Market size 73Growth 19Conversion 98Competition 14Returns 86Price range 64Avg price 52Brand share 3Review moat 25Quality gap 40
**Conversion**
**Incredible****16.4%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.5%**
return rate — above 5% kills the launch gate
**Market size**
**Good****$805K**
$805K/yr · 401K searches
**Price range**
**Good****$8.06–$27.54**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Good****$12.26**
avg listing price — sweet spot $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****4,535.8**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-11.6%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****83%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****99%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, spectra duckbill valve is a $805K/yr Amazon United States market (401K searches/yr). The top 5 brands hold 99% of demand. Demand peaks in Sep. Verdict: Skip it — 46/100.
Data updated Jul 12, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **spectra duckbill valve market data**
- **Units sold / yr**
- **60K–80K**
- avg 5,000–6,000/product
- **Revenue / yr**
- **$736K–$981K**
- units × avg price
- **Conversion rate**
- **16.4%**
- **Avg BSR**
- **#158**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **40 months**
- **Avg seller age**
- **169 days**
## **Competition & brand share**
The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **▲rising
**Sellers**
**11**
**Top-5 brand share**
**99%**
Top 20: 100%
**Top-5 click share**
**83%**
Top 20: 100%
**Open market**
**0%**
- Maymom31% - Papablic27% - SPECTRA17% - Legendairy Milk17% - Momstouch7% - BACAYZZL1%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -11.6% search growth over the last 90 days.
30K20KSpike '24Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep · busiest ÷ quietest = 3.2×
[**Open Trend **](https://flapen.com/research/us/baby-products/spectra-duckbill-valve/trend)
## **Top spectra duckbill valve search terms**
- **spectra duckbill valve**113K/yr-4.4%19.2% conv. - **duckbill valves**66K/yr-12.5%9.7% conv. - **duckbill valves spectra s1**19K/yr-7.5%14.6% conv. - **duck bill valves spectra**20K/yr-20.7%14.5% conv. - **spectra duckbill valves replacement parts**7K/yr+41.6%16.7% conv. - **spectra duckbill valves replacement**3K/yr>1,000%18.5% conv. - **spectra duckbill valve replacement**24K/yr-64.1%16.2% conv. - **duck bills spectra pump**11K/yr-14.8%15.8% conv. - **duckbill**9K/yr+18.6%3.1% conv. - **legendairy milk duckbill valves**10K/yr-16.8%14.7% conv. [**All search terms **](https://flapen.com/research/us/baby-products/spectra-duckbill-valve/search-terms)
## **Top spectra duckbill valve 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.
0%10%$80K20%$161K30%$241K40%$322K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1![[6-Count] Papablic Duckbill Valves Replacement Milk Valves Compatible with Spectra S1 S2 & Medela Breast Pumps Parts Accessories BPA & DEHP Free Food-Grade Silicone Easy to Clean White](https://m.media-amazon.com/images/I/31kl74xBDdL.jpg)**\[6-Count\] Papablic Duckbill Valves Replacement Milk Valves Compatible with Spectra S1 S2 & Medela Breast Pumps Parts Accessories BPA & DEHP Free Food-Grade Silicone Easy to Clean White**Papablic**$8.71**4.6★5,237 rev](https://www.amazon.com/dp/B07WHHQN6R) [2**Maymom Duckbill Valves Compatible with Spectra S1 S2 9 Plus Dew 350 Not Original Spectra Pump Parts S2 Accessories Replace Valve (White 6ct)**Maymom**$9.04**4.7★13,372 rev](https://www.amazon.com/dp/B07SNHJPX1) [3**Legendairy Milk Duckbill Valves with Pull Tab - Compatible with Spectra S1 S2 9 Plus Medela Motif Baby Buddha & Zomee - Duckbill Valve Replacement Pump Parts BPA Free Silicone 6 Pack**Legendairy Milk**$11.76**4.4★1,673 rev](https://www.amazon.com/dp/B08MWQQN6W) [4**Spectra - Duckbill Valve Replacement for Breast Milk Pump (Pack of 2) - Fits Small Medium Large or X-Large Breast Shields and Flanges**SPECTRA**$13.92**4.7★3,916 rev](https://www.amazon.com/dp/B071VP23ZX) [5**Maymom Pump Parts Compatible with Spectra S1 S2 9 Plus Synergy Gold Incl Duckbill Valve Silicone Membrane Not Original Spectra S1 S2 Replacement Pump Parts**Maymom**$12.50**4.7★3,771 rev](https://www.amazon.com/dp/B08Q7CL35R)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**BACAYZZL 14 Count Duckbill Valves Compatible with Spectra S1 S2 9 Plus Synergy Gold Accessories Valves Replace Not Original Spectra Replacement Pump Parts**BACAYZZL**$11.03**26 rev6mo ago](https://www.amazon.com/dp/B0G6YPCVBP) [**Momstouch Duckbill Valves for Spectra. Replacement Duckbill Valves for Spectra S1 S2 9 Plus SG Pumps. Not Original Accessories (6 Count)**Momstouch**$8.06**39 rev7mo ago](https://www.amazon.com/dp/B0FKGL8DNQ) [**Momstouch 6 Duckbill Valves and 4 Silicone Membrane for Spectra and Motif Luna. Replacement Duckbill Valves for Spectra S1 S2 9 Plus SG Pumps. Not Original Accessories**Momstouch**$10.06**36 rev7mo ago](https://www.amazon.com/dp/B0FMR3SX9J) [**Spectra - Duckbill Valve Replacement for Breast Milk Pump (Pack of 4) - Fits Small Medium Large or X-Large Breast Shields and Flanges**SPECTRA**$27.54**3,916 rev1y ago](https://www.amazon.com/dp/B0F67KS97C) [**Maymom 8 Count Duckbill Valves Compatible with Spectra S1 S2 9 Plus Dew 350 Not Original Spectra Pump Parts S2 Accessories Replace Valve (White)**Maymom**$9.97**13,372 rev4y ago](https://www.amazon.com/dp/B0CLS2MHMD)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Momstouch Duckbill Valves for Spectra. Replacement Duckbill Valves for Spectra S1 S2 9 Plus SG Pumps. Not Original Accessories (6 Count)**Momstouch**$8.06**4.8★**▲ 165%**](https://www.amazon.com/dp/B0FKGL8DNQ) [**Momstouch 6 Duckbill Valves and 4 Silicone Membrane for Spectra and Motif Luna. Replacement Duckbill Valves for Spectra S1 S2 9 Plus SG Pumps. Not Original Accessories**Momstouch**$10.06**4.2★**▲ 152%**](https://www.amazon.com/dp/B0FMR3SX9J) [**BACAYZZL 14 Count Duckbill Valves Compatible with Spectra S1 S2 9 Plus Synergy Gold Accessories Valves Replace Not Original Spectra Replacement Pump Parts**BACAYZZL**$11.03**3.6★**▲ 121%**](https://www.amazon.com/dp/B0G6YPCVBP) [**Spectra - Duckbill Valve Replacement for Breast Milk Pump (Pack of 4) - Fits Small Medium Large or X-Large Breast Shields and Flanges**SPECTRA**$27.54**4.7★**▲ 96%**](https://www.amazon.com/dp/B0F67KS97C) [**Maymom Pump Parts Compatible with Spectra S1 S2 9 Plus Synergy Gold Incl Duckbill Valve Silicone Membrane Not Original Spectra S1 S2 Replacement Pump Parts**Maymom**$12.50**4.7★**▲ 21%**](https://www.amazon.com/dp/B08Q7CL35R)
**~~View all trending →~~**
## **What buyers say about spectra duckbill valve**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**19%
*“Good quality”*
**Size-Overall**16%
*“Exact fit”*
**Ease Of Use**11%
*“Very helpful and easy to use”*
**Ease Of Cleaning**11%
*“easy to clean”*
**Value For Money**8%
*“great value at a nice price”*
**Color**7%
*“Love the color”*
**Compatibility-Overall**5%
*“There were compatible with my spectra S1”*
**Durability**5%
*“Great quality and durable”*
**Maintenance And Repair**3%
*“so I like keeping replacements on hand”*
**Washability**2%
*“plenty of them so I can have one sitting to be washed”*
### **What buyers complain about **
**Quality-Overall**22%
*“Bad quality”*
**Durability**15%
*“Not durable at all”*
**Ease Of Use**15%
*“am unable to use it”*
**Size-Overall**7%
*“They are a little loose”*
**Leak-Proof**6%
*“Leaky”*
**Value For Money**5%
*“Not a good deal”*
**Product Condition**5%
*“The packaging appeared brand new”*
**Functionality-Overall**4%
*“Don't work well”*
**Noise Level**3%
*“make an irritating clicking sound”*
**Defective Material/Parts**2%
*“Defective”*
### **Top return reasons **
**Size-Overall**39%
**Functionality-Overall**11%
**Defective Material/Parts**9%
**Advertised Vs Actual Product**8%
**Compatibility-Overall**6%
**Quality-Overall**5%
**Product Condition**5%
**Value For Money**4%
**Leak-Proof**3%
**Width**3%
## **Common questions**
- **Is spectra duckbill valve profitable to sell on Amazon United States?**
- The niche generates $805K/yr across 10 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -11.6%. Flapen's verdict: Skip it (46/100).
- **How competitive is the spectra duckbill valve niche?**
- 6 brands and 11 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 99% of demand.
- **What do buyers complain about in spectra duckbill valve?**
- Top complaints mined from reviews: Quality-Overall, Durability, Ease Of Use. The return rate is 1.5%.
- **When does demand for spectra duckbill valve peak?**
- Demand peaks in Sep; the busiest month runs 3.2× the quietest.
- **What does it cost to enter the spectra duckbill valve niche?**
- Listings span $8.06–$27.54; the average listing price is $12.26 (sweet spot $15–$100). The average incumbent carries 4,536 reviews — the moat a new listing must climb.
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