---
title: "17mm Flange Spectra — $334K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/baby-products/17mm-flange-spectra"
last_updated: "2026-08-09T01:17:23.489Z"
locale: en
meta:
description: "Niche score 40/100 · $334K/yr market · 111K searches/yr · $16.05 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 40/100 · $334K/yr market · 111K searches/yr · $16.05 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "17mm Flange Spectra — $334K/yr Amazon US Niche (2026) - Flapen"
---
# **17mm flange spectra**
**Skip it**
A concentrated shelf (top 5 take 83% of clicks) — this niche doesn't clear our bar today.
Market size 53Growth 17Conversion 99Competition 14Returns 29Price range 76Avg price 78Brand share 19Review moat 36Quality gap 37
**Conversion**
**Incredible****18.7%**
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**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****2,933.91**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Okay****4.7%**
return rate — above 5% kills the launch gate
**Brand share**
**Bad****92%**
top-5 brand share — brand-locked demand
**Growth**
**Bad****-15.6%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****83%**
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 ~~](https://flapen.com/research/methodology)
## **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**
**9**
**Top-5 brand share**
**92%**
Top 20: 100%
**Top-5 click share**
**83%**
Top 20: 100%
**Open market**
**5%**
- 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.
4K3KPrime Day '25Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/baby-products/17mm-flange-spectra/trend)
## **Top 17mm flange spectra search terms**
- **17mm flange spectra**30K/yr-21.6%15.3% conv. - **spectra flange 17mm**24K/yr-12.3%16.2% conv. - **17 mm flange spectra**20K/yr-31.1%15.0% conv. - **spectra 17mm flange**10K/yr-7.9%17.0% conv. - **spectra 17mm flange set**11K/yr+13.3%14.1% conv. - **maymom 17mm flange spectra**4K/yr+5.9%18.8% conv. - **17 flange spectra**3K/yr-2.6%18.9% conv. - **size 17 flange spectra**3K/yr-10.6%18.0% conv. - **17mm spectra flange**3K/yr-30.8%16.4% conv. - **spectra flanges 17mm**2K/yr-7.2%12.7% conv. [**All search terms **](https://flapen.com/research/us/baby-products/17mm-flange-spectra/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.
0%10%$33K20%$67K30%$100K40%$134K1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**Maymom 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Not Original Spectra S2 Replacement Pump Parts Flange Duckbill Valve**Maymom**$19.76**4.6★6,022 rev](https://www.amazon.com/dp/B0B4RC1HF3) [2**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**$16.77**4.8★3,464 rev](https://www.amazon.com/dp/B07PVJ8ZVM) [3**Momstouch 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Pump Parts Not Original Replace Accessories.**Momstouch**$16.78**4.3★592 rev](https://www.amazon.com/dp/B0FC2BKZBW) [4**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**$12.33**4.7★3,324 rev](https://www.amazon.com/dp/B0B7458KHP) [5**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**$9.97**4.4★119 rev](https://www.amazon.com/dp/B0FM8S5QZN)
**~~View all top sellers →~~**
### **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**$9.97**119 rev11mo ago](https://www.amazon.com/dp/B0FM8S5QZN) [**Momstouch 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Pump Parts Not Original Replace Accessories.**Momstouch**$16.78**592 rev11mo ago](https://www.amazon.com/dp/B0FC2BKZBW) [**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**$9.65**112 rev1y ago](https://www.amazon.com/dp/B0FCBM6L2G) [**GOTOCUT 4PCS 17mm Breast Pump Flanges Compatible with Spectra S1/S2/9Plus/Synergy Gold Motif Luna Wide-Mouth Bottle Fit Breast Pump Accessories**Gotocut**$15.42**107 rev1y ago](https://www.amazon.com/dp/B0DK9GXR9X) [**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**$16.77**915 rev2y ago](https://www.amazon.com/dp/B0D1P1BHJL)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$9.65**4.3★**▲ 84%**](https://www.amazon.com/dp/B0FCBM6L2G) [**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**$12.33**4.7★**▲ 65%**](https://www.amazon.com/dp/B0B7458KHP) [**Momstouch 17mm Flange and Duckbill Valve Compatible with Spectra S1 S2 9 Plus Breastpump Replacement to Pump Parts Not Original Replace Accessories.**Momstouch**$16.78**4.3★**▲ 46%**](https://www.amazon.com/dp/B0FC2BKZBW) [**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**$16.77**4.4★**▲ 30%**](https://www.amazon.com/dp/B0D1P1BHJL) [**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**$16.77**4.8★**▲ 18%**](https://www.amazon.com/dp/B07PVJ8ZVM)
**~~View all trending →~~**
## **What buyers say about 17mm flange spectra**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**46%
*“Fit perfect”*
**Quality-Overall**13%
*“Good Quality”*
**Value For Money**10%
*“Worth the buy”*
**Advertised Vs Actual Product**4%
*“just as well as the brand name”*
**Ease Of Use**4%
*“More convenient than inserts”*
**Compatibility-Overall**4%
*“Works well with Spectra”*
**Comfort-Overall**3%
*“They are very comfortable”*
**Ease Of Cleaning**3%
*“easy to clean”*
**Strength**2%
*“they are still going strong”*
**Soft Feel**1%
*“The material is soft”*
### **What buyers complain about **
**Size-Overall**13%
*“Not a great fit on rhe spectra bottles”*
**Durability**8%
*“Cracked in 2 weeks”*
**Noise Level**8%
*“None of them make this noise”*
**Value For Money**8%
*“Not worth it”*
**Functionality-Overall**8%
*“Does not work”*
**Quality-Overall**8%
*“the flanges did not seem like they should have made it past quality control”*
**Material Quality**4%
*“Probably the material is not as good to go through a steam sanitizer”*
**Ease Of Use**4%
*“I rather that than being too easy to slip in and out”*
**Allergies**4%
*“irritating my skin”*
**Leak-Proof**4%
*“There is some leaking around the flange when pouring because they arent a eufy product”*
### **Top return reasons **
**Size-Overall**81%
**Width**4%
**Advertised Vs Actual Product**3%
**Functionality-Overall**3%
**Defective Material/Parts**2%
**Value For Money**1%
**Compatibility-Overall**1%
**Comfort-Overall**1%
**Material Quality**1%
**Shape/Style**1%
## **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.
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