momcozy s12 pro replacement parts
Skip itBrand-locked demand (top 5 brands take 96% of clicks) — this niche doesn't clear our bar today.
Avg price
Great$18.42avg listing price — sweet spot $15–$100
Price range
Great$8.04–$38.69cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good624.29avg incumbent reviews — the moat a new listing must climb
Conversion
Good6.0%search→purchase rate — share of searches ending in a sale
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Returns
Okay3.6%return rate — above 5% kills the launch gate
Market size
Okay$128K$128K/yr · 116K searches
Competition
Okay70%top-5 click share — leaders hold, buyers still browse
Growth
Bad-13.4%90-day search growth — must beat 0% to launch
Brand share
Bad96%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, momcozy s12 pro replacement parts is a $128K/yr Amazon United States market (116K searches/yr). The top 5 brands hold 96% of demand. Demand peaks in Aug–Sep–Nov. Verdict: Skip it — 40/100.
Data updated Jul 12, 2026 · scored weekly · How we score niches
momcozy s12 pro replacement parts market data
- Units sold / yr
- 8K–10K
- avg 500–750/product
- Revenue / yr
- $147K–$184K
- units × avg price
- Conversion rate
- 6.0%
- Avg BSR
- #123
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 82%
- Out of stock
- 3.2%
- Avg brand age
- 33 months
- Avg seller age
- 221 days
Competition & brand share
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.Brands
7 falling
Sellers
9
Top-5 brand share
96%
Top 20: 100%
Top-5 click share
70%
Top 20: 100%
Open market
2%
- Momcozy45%
- TOVVILD16%
- IVARONAL16%
- afontoto15%
- JIMOWANG3%
- MilkFlow2%
- Open — no brand owns it (1 brand, 2%)
Demand & seasonality
Weekly Amazon search volume, last 103 weeks — -13.4% search growth over the last 90 days.Peak months: Aug, Sep, Nov · busiest ÷ quietest = 2.7×
Top momcozy s12 pro replacement parts search terms
- momcozy s12 pro replacement parts38K/yr
- momcozy s9 pro replacement parts26K/yr
- momcozy s9 replacement parts14K/yr
- momcozy s12 replacement parts15K/yr
- mom cozy s12 pro replacement parts9K/yr
- mom cozy s9 pro replacement parts4K/yr
- s12 pro breast pump replacement parts4K/yr
- mom cozy s9 replacement parts5K/yr
Top momcozy s12 pro replacement parts 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.
All 17 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Momcozy Original S9 Pro/S12 Pro Replacement Accessories Only Compatible with S9 Pro/S12 Pro Breast Pump NOT for S9/S12/S12Pro-Quick (Single-Sealed Full Set Collector 24mm Flange 180ml 1 Pack)
Momcozy$26.554.4★867 rev
TOVVILD 12 Pack S9 Pro / S12 Pro / S9 / S12 Duckbill Valve Silicone Diaphragm Compatible with momcozy Breastpump Electric Breast Pump Replacement Parts Accessories
TOVVILD$11.694.4★1,539 rev
Momcozy Original S9 Pro/S12 Pro Replacement Accessories Only Compatible with Momcozy S9 Pro/S12 Pro NOT for S9/S12/S12Pro-Quick (Double-Sealed Full Set Collector with 24mm Flange 180ml 1 Pack)
Momcozy$31.904.4★867 rev
6 Pack Silicone Duckbill Valve & 4 Pack Silicone Diaphragm Compatible with Momcozy S12Pro/S9Pro/S12/S9 Wearable Breastpump momcozy Breast Pump Replacement Parts Breastfeeding Essential Accessories
afontoto$8.044.6★977 rev
Two Full Milk Collector Cup Sets with 24mm Flange Compatible with Momcozy S12 Pro/S9 Pro Breast Pump NOT for S9/S12 Replacement Pump Parts with Duckbill Valve Flange Diaphragm Linker Collector
IVARONAL$38.694.4★251 rev
Newest
by launch date
S9 Pro/S12 Pro/S9/S12 Duckbill Valve & Silicone Diaphragm Replacement Parts Compatible with Momcozy Wearable Breast Pump BPA-Free Food-Grade Silicone Accessories (6 Pack: 4 Valves + 2 Diaphragms)
MilkFlow$10.045 rev
Momcozy Original S9 Pro/S12 Pro Replacement Accessories Only Compatible with S9 Pro/S12 Pro Breast Pump NOT for S9/S12/S12Pro-Quick (Single-Sealed Full Set Collector 24mm Flange 180ml 1 Pack)
Momcozy$26.55867 rev
Momcozy Original S9 Pro/S12 Pro Replacement Accessories Only Compatible with Momcozy S9 Pro/S12 Pro Breast Pump NOT for S9/S12/S12Pro-Quick(Duckbill Valves & Silicone Diaphragm 1 Pack)
Momcozy$14.02867 rev
8PCS Silicone Duckbill Valve & 4PCS Silicone Diaphragm Compatible with Momcozy S12 Pro/S9 Pro/S12/S9 Breastpump momcozy Breast Pump Replacement Parts Breastfeeding Essentials Pumping Kit for Moms
afontoto$9.13977 rev
14Pack Breast Pump Parts Compatible with momcozy S9 Pro/S12 Pro/S9/S12 Wearable Breastpump 10Pack Duckbill Valve & 4Pack Silicone Diaphragm Breast Pump Replacement Parts Breastfeeding Essentials Kit
afontoto$10.36977 rev
Trending
90-day click momentumS9 Pro/S12 Pro/S9/S12 Duckbill Valve & Silicone Diaphragm Replacement Parts Compatible with Momcozy Wearable Breast Pump BPA-Free Food-Grade Silicone Accessories (6 Pack: 4 Valves + 2 Diaphragms)
MilkFlow$10.044.8★
Momcozy Original S9 Pro/S12 Pro Replacement Accessories Only Compatible with S9 Pro/S12 Pro Breast Pump NOT for S9/S12/S12Pro-Quick (Single-Sealed Full Set Collector 24mm Flange 180ml 1 Pack)
Momcozy$26.554.4★
Momcozy Original S9 Pro/S12 Pro Replacement Accessories Only Compatible with Momcozy S9 Pro/S12 Pro Breast Pump NOT for S9/S12/S12Pro-Quick(Duckbill Valves & Silicone Diaphragm 1 Pack)
Momcozy$14.024.4★
One Full Set Milk Collector Cup 21mm Only Compatible with Momcozy S12 Pro/S9 Pro Breast Pump NOT for S9/S12 S12 Pro/S9 Pro Wearable Breast Pump Replacement Parts with 21mm Flange
IVARONAL$19.174.3★
One Full Set Milk Collector Cup 17mm Only Compatible with Momcozy S12 Pro/S9 Pro Breast Pump NOT for S9/S12 S12 Pro/S9 Pro Wearable Breast Pump Replacement Parts with 17mm Flange
IVARONAL$18.954.3★
What buyers say about momcozy s12 pro replacement parts
What buyers praise and complain about, mined from review topics.What buyers love
“fits accurately”
“Overall, a great value and definitely worth having as replacements”
“Compatible with MomCozy S9”
“these work exactly as expected”
“This is pretty affordable”
“No leakage when assembled correctly”
“more convenient cleaning”
“Easy to Use”
“This pump collector is perfect for having a spare or if you need a replacement”
“Came in handy”
What buyers complain about
“I wish they were somewhat cheaper”
“Doesnt fit”
“The collector cups fall apart before they can even be used”
“I was very disappointed the sellers misleading description and you will be too if you buy this for any spectra products so save yourself the money and the stress”
“Maybe takes some getting used to”
“Very flimsy”
“Duckbill flanges are not compatible with S12 Pro”
“Valves did not stay on very well”
“Slightly less comfortable than the actual product”
“My only real problem with them is that the flanges are flatter than the original”
Top return reasons
Common questions
- Is momcozy s12 pro replacement parts profitable to sell on Amazon United States?
- The niche generates $128K/yr across 17 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -13.4%. Flapen's verdict: Skip it (40/100).
- How competitive is the momcozy s12 pro replacement parts niche?
- 7 brands and 9 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 96% of demand.
- What do buyers complain about in momcozy s12 pro replacement parts?
- Top complaints mined from reviews: Value For Money, Size-Overall, Durability. The return rate is 3.6%.
- When does demand for momcozy s12 pro replacement parts peak?
- Demand peaks in Aug–Sep–Nov; the busiest month runs 2.7× the quietest.
- What does it cost to enter the momcozy s12 pro replacement parts niche?
- Listings span $8.04–$38.69; the average listing price is $18.42 (sweet spot $15–$100). The average incumbent carries 624 reviews — the moat a new listing must climb.