Is 17mm flange spectra profitable to sell on Amazon United States?

The niche generates $334K/yr across 11 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -15.6%. Flapen's verdict: Skip it (40/100).

How competitive is the 17mm flange spectra niche?

8 brands and 9 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 92% of demand.

What do buyers complain about in 17mm flange spectra?

Top complaints mined from reviews: Size-Overall, Durability, Noise Level. The return rate is 4.7%.

When does demand for 17mm flange spectra peak?

Demand is steady year-round — the busiest month runs 1.4× the quietest.

What does it cost to enter the 17mm flange spectra niche?

Listings span $9.65–$32.51; the average listing price is $16.05 (sweet spot $15–$100). The average incumbent carries 2,934 reviews — the moat a new listing must climb.

17mm flange spectra

Skip it

A concentrated shelf (top 5 take 83% of clicks) — this niche doesn't clear our bar today.

Conversion

Incredible18.7%

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

Avg price

Great$16.05

avg listing price — sweet spot $15–$100

Price range

Great$9.65–$32.51

cheapest to priciest tracked listing — scored on the share inside $15–$100

Market size

Good$334K

$334K/yr · 111K searches

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Review moat

Okay2,933.91

avg incumbent reviews — the moat a new listing must climb

Returns

Okay4.7%

return rate — above 5% kills the launch gate

Brand share

Bad92%

top-5 brand share — brand-locked demand

Growth

Bad-15.6%

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

Competition

Bad83%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, 17mm flange spectra is a $334K/yr Amazon United States market (111K searches/yr). The top 5 brands hold 92% of demand. Verdict: Skip it — 40/100.

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

17mm flange spectra market data

Units sold / yr: 20K–25K; avg 2,000–2,500/product
Revenue / yr: $321K–$401K; units × avg price
Conversion rate: 18.7%
Avg BSR: #60
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 34 months
Avg seller age: 167 days

Competition & brand share

The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 rising

Sellers

Top-5 brand share

92%

Top 20: 100%

Top-5 click share

83%

Top 20: 100%

Open market

Maymom57%
Momstouch15%
NENESUPPLY10%
CubCare7%
afontoto4%
PUMPMOM-US3%
Open — no brand owns it (2 brands, 5%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -15.6% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.4×

Open Trend

Top 17mm flange spectra search terms

17mm flange spectra30K/yr -21.6%15.3% conv.
spectra flange 17mm24K/yr -12.3%16.2% conv.
17 mm flange spectra20K/yr -31.1%15.0% conv.
spectra 17mm flange10K/yr -7.9%17.0% conv.
spectra 17mm flange set11K/yr +13.3%14.1% conv.
maymom 17mm flange spectra4K/yr +5.9%18.8% conv.
17 flange spectra3K/yr -2.6%18.9% conv.
size 17 flange spectra3K/yr -10.6%18.0% conv.
17mm spectra flange3K/yr -30.8%16.4% conv.
spectra flanges 17mm2K/yr -7.2%12.7% conv.

All search terms

Top 17mm flange spectra 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 11 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Maymom 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Not Original Spectra S2 Replacement Pump Parts Flange Duckbill Valve

Maymom$19.764.6★6,022 rev

Maymom 2x17 mm Wide Neck Pump Parts Compatible with Spectra S1/S2 Pumps; Incl Wide Mouth Flanges; Not Original Spectra Flange Shield (Two Small Flanges)

Maymom$16.774.8★3,464 rev

Momstouch 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Pump Parts Not Original Replace Accessories.

Momstouch$16.784.3★592 rev

Nenesupply 17mm 2 pc Flanges Compatible with Spectra S2 S1 9 Plus Synergy Gold Breastpump Replacement to Spectra Pump Parts Flange Accessories Wide Mouth Work with Valve Backflow Protector Bottle

NENESUPPLY$12.334.7★3,324 rev

Flange Inserts for Spectra Spectra Replacement Pump Parts for S1/S2/9 Plus Not Original Accessories Breast Pump Parts Include 2-Pack17MM Flanges and 4-Pack Duckbill Valves

CubCare$9.974.4★119 rev

Newest

by launch date

Flange Inserts for Spectra Spectra Replacement Pump Parts for S1/S2/9 Plus Not Original Accessories Breast Pump Parts Include 2-Pack17MM Flanges and 4-Pack Duckbill Valves

CubCare$9.97119 rev

11mo ago

Momstouch 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Pump Parts Not Original Replace Accessories.

Momstouch$16.78592 rev

11mo ago

17mm Flanges Compatible with Spectra S2 S1 9 Plus Synergy Gold Breastpump Not Original Spectra Replacement Pump Parts Wide Mouth Flange Accessories for Elastic Nipples Work with Backflow Protector

afontoto$9.65112 rev

1y ago

GOTOCUT 4PCS 17mm Breast Pump Flanges Compatible with Spectra S1/S2/9Plus/Synergy Gold Motif Luna Wide-Mouth Bottle Fit Breast Pump Accessories

Gotocut$15.42107 rev

1y ago

PumpMom-us 17mm Oval Flanges with Soft Rim Compatible with Spectra S2 S1 9 Plus Breastpumps Accessories Replacement Breast Shield and Duckbill Valves for Spectra Pump Parts and Flange

PUMPMOM-US$16.77915 rev

2y ago

What buyers say about 17mm flange spectra

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

What buyers love

Size-Overall46%

“Fit perfect”

Quality-Overall13%

“Good Quality”

Value For Money10%

“Worth the buy”

Advertised Vs Actual Product4%

“just as well as the brand name”

Ease Of Use4%

“More convenient than inserts”

Compatibility-Overall4%

“Works well with Spectra”

Comfort-Overall3%

“They are very comfortable”

Ease Of Cleaning3%

“easy to clean”

Strength2%

“they are still going strong”

Soft Feel1%

“The material is soft”

What buyers complain about

Size-Overall13%

“Not a great fit on rhe spectra bottles”

Durability8%

“Cracked in 2 weeks”

Noise Level8%

“None of them make this noise”

Value For Money8%

“Not worth it”

Functionality-Overall8%

“Does not work”

Quality-Overall8%

“the flanges did not seem like they should have made it past quality control”

Material Quality4%

“Probably the material is not as good to go through a steam sanitizer”

Ease Of Use4%

“I rather that than being too easy to slip in and out”

Allergies4%

“irritating my skin”

Leak-Proof4%

“There is some leaking around the flange when pouring because they arent a eufy product”

Top return reasons

Size-Overall81%

Width4%

Advertised Vs Actual Product3%

Functionality-Overall3%

Defective Material/Parts2%

Value For Money1%

Compatibility-Overall1%

Comfort-Overall1%

Material Quality1%

Shape/Style1%

Common questions

Is 17mm flange spectra profitable to sell on Amazon United States?: The niche generates $334K/yr across 11 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -15.6%. Flapen's verdict: Skip it (40/100).
How competitive is the 17mm flange spectra niche?: 8 brands and 9 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 92% of demand.
What do buyers complain about in 17mm flange spectra?: Top complaints mined from reviews: Size-Overall, Durability, Noise Level. The return rate is 4.7%.
When does demand for 17mm flange spectra peak?: Demand is steady year-round — the busiest month runs 1.4× the quietest.
What does it cost to enter the 17mm flange spectra niche?: Listings span $9.65–$32.51; the average listing price is $16.05 (sweet spot $15–$100). The average incumbent carries 2,934 reviews — the moat a new listing must climb.