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.

spectra duckbill valve

Skip it

Brand-locked demand (top 5 brands take 99% of clicks) — this niche doesn't clear our bar today.

Conversion

Incredible16.4%

search→purchase rate — share of searches ending in a sale

Returns

Great1.5%

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

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Bad4,535.8

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-11.6%

90-day search growth — must beat 0% to launch

Competition

Bad83%

top-5 click share — a locked-up shelf

Brand share

Bad99%

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

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

Top-5 brand share

99%

Top 20: 100%

Top-5 click share

83%

Top 20: 100%

Open market

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.

Peak months: Sep · busiest ÷ quietest = 3.2×

Open Trend

Top spectra duckbill valve search terms

spectra duckbill valve113K/yr -4.4%19.2% conv.
duckbill valves66K/yr -12.5%9.7% conv.
duckbill valves spectra s119K/yr -7.5%14.6% conv.
duck bill valves spectra20K/yr -20.7%14.5% conv.
spectra duckbill valves replacement parts7K/yr +41.6%16.7% conv.
spectra duckbill valves replacement3K/yr >1,000%18.5% conv.
spectra duckbill valve replacement24K/yr -64.1%16.2% conv.
duck bills spectra pump11K/yr -14.8%15.8% conv.
duckbill9K/yr +18.6%3.1% conv.
legendairy milk duckbill valves10K/yr -16.8%14.7% conv.

All 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.

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

[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$8.714.6★5,237 rev

Maymom Duckbill Valves Compatible with Spectra S1 S2 9 Plus Dew 350 Not Original Spectra Pump Parts S2 Accessories Replace Valve (White 6ct)

Maymom$9.044.7★13,372 rev

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$11.764.4★1,673 rev

Spectra - Duckbill Valve Replacement for Breast Milk Pump (Pack of 2) - Fits Small Medium Large or X-Large Breast Shields and Flanges

SPECTRA$13.924.7★3,916 rev

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$12.504.7★3,771 rev

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$11.0326 rev

6mo ago

Momstouch Duckbill Valves for Spectra. Replacement Duckbill Valves for Spectra S1 S2 9 Plus SG Pumps. Not Original Accessories (6 Count)

Momstouch$8.0639 rev

7mo ago

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$10.0636 rev

7mo ago

Spectra - Duckbill Valve Replacement for Breast Milk Pump (Pack of 4) - Fits Small Medium Large or X-Large Breast Shields and Flanges

SPECTRA$27.543,916 rev

1y ago

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$9.9713,372 rev

4y ago

What buyers say about spectra duckbill valve

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

What buyers love

Quality-Overall19%

“Good quality”

Size-Overall16%

“Exact fit”

Ease Of Use11%

“Very helpful and easy to use”

Ease Of Cleaning11%

“easy to clean”

Value For Money8%

“great value at a nice price”

Color7%

“Love the color”

Compatibility-Overall5%

“There were compatible with my spectra S1”

Durability5%

“Great quality and durable”

Maintenance And Repair3%

“so I like keeping replacements on hand”

Washability2%

“plenty of them so I can have one sitting to be washed”

What buyers complain about

Quality-Overall22%

“Bad quality”

Durability15%

“Not durable at all”

Ease Of Use15%

“am unable to use it”

Size-Overall7%

“They are a little loose”

Leak-Proof6%

“Leaky”

Value For Money5%

“Not a good deal”

Product Condition5%

“The packaging appeared brand new”

Functionality-Overall4%

“Don't work well”

Noise Level3%

“make an irritating clicking sound”

Defective Material/Parts2%

“Defective”

Top return reasons

Size-Overall39%

Functionality-Overall11%

Defective Material/Parts9%

Advertised Vs Actual Product8%

Compatibility-Overall6%

Quality-Overall5%