Best Selling Flange Insert Kit: See Top Product Rankings by Sales Volume & Market Trends

July 2026
143 Products Tracked

Looking for the most popular flange insert kit products in the market? Our report leverages real Amazon monthly sales data to identify the best-performing products and the fastest-growing opportunities within the search results for the keyword "flange insert kit." Whether you're searching for winning products to launch or monitoring market trends and competitor performance, this report provides the insights you need.

Based on monthly sales analytics, our Shoppers' Top Picks highlights that ASIN B0CMPBBHMZ currently leads the flange insert kit market with 10K monthly sales, followed closely by B0CKZH37FX with 8K monthly sales and B0CY81WHD5 with 6K monthly sales. Meanwhile, ASIN B0GJRV3N1Q stands out as the fastest-growing product, achieving an impressive 100.0% month-over-month sales growth. By tracking competitor sales performance and shifts in market demand, sellers can uncover emerging opportunities and make more informed product and marketing decisions.

🏆Shoppers' Top PicksAmazon
by monthly sales July 2026
Nuliie 3-in-1 Flange Sizing Kit 13/15/17/19/21mm for 24mm Electric Double Breast Pump Flange/Shield, 10PCS Silicone Flange Inserts to Boost Pumping Efficiency & Comfort, BPA-Free Essential for Moms
1
B0CMPBBHMZ
$9.99·
4.6
Units/sold10K
Nursi Luna Flange Inserts 10PCS 13/15/17/19/21mm for 24mm Flanges/Shield of Most Pumps, Flange Sizing Kit Silicone Flanges Insert, Breastfeeding Essentials Kit for New Moms
2
B0CKZH37FX
$9.99·
4.6
Units/sold8K
Nursi Luna Flange Sizing Kit 3-in-1 with 13/15/17/19/21mm for 24mm Electric Breast Pump Flanges/Shields, 10PCS Soft Silicone Flange Inserts for More Comfortable Pumping, BPA-Free, Essential for Moms
3
B0CY81WHD5
$9.99·
4.6
Units/sold6K

Top Selling Flange Insert Kit

As of July 2026, we analyzed 143 tracked products in Amazon's "flange insert kit" search results and generated the following sales chart and product rankings based on monthly sales data. The ranking below highlights the Top 10 products by estimated monthly sales. According to the latest data, these products generated between 900 and 10,000 monthly sales. B0CMPBBHMZ leads the flange insert kit market with an estimated 10,000 monthly sales, down 10.0% from the previous month.

143Products Tracked
3,190Top 10 Avg. Sales
$11.56Top 10 Avg. Price
4.6Top 10 Avg. Rating
🏆
Nuliie 3-in-1 Flange Sizing Kit 13/15/17/19/21mm for 24mm Electric Double Breast Pump Flange/Shield, 10PCS Silicone Flange Inserts to Boost Pumping Efficiency & Comfort, BPA-Free Essential for Moms
#1
B0CMPBBHMZ

Nuliie 3-in-1 Flange Sizing Kit 13/15/17/19/21mm for 24mm Electric Double Breast Pump Flange/Shield, 10PCS Silicone Flange Inserts to Boost Pumping Efficiency & Comfort, BPA-Free Essential for Moms

10,000
▼ 10.0%
Units Sold/mo
$9.99
Price
4.6
Rating
4.1K
Reviews
2
Nursi Luna Flange Inserts 10PCS 13/15/17/19/21mm for 24mm Flanges/Shield of Most Pumps, Flange Sizing Kit Silicone Flanges Insert, Breastfeeding Essentials Kit for New Moms
B0CKZH37FX
$9.99
4.6 (2K)
Nursi Luna Flange Inserts 10PCS 13/15/17/19/21mm for 24mm Flanges/Shield of Most Pumps, Flange Sizing Kit Silicone Flanges Insert, Breastfeeding Essentials Kit for New Moms
8,000 Units Sold/mo▼ 50.0%
3
Nursi Luna Flange Sizing Kit 3-in-1 with 13/15/17/19/21mm for 24mm Electric Breast Pump Flanges/Shields, 10PCS Soft Silicone Flange Inserts for More Comfortable Pumping, BPA-Free, Essential for Moms
B0CY81WHD5
$9.99
4.6 (2.1K)
Nursi Luna Flange Sizing Kit 3-in-1 with 13/15/17/19/21mm for 24mm Electric Breast Pump Flanges/Shields, 10PCS Soft Silicone Flange Inserts for More Comfortable Pumping, BPA-Free, Essential for Moms
6,000 Units Sold/mo▼ 50.0%
4
Momcozy Nipple Ruler for Flange Sizing, Soft & Flexible Silicone Measurement Tool for Breast Pump Sizing, Compatible with Momcozy, Medela, Spectra, Lansinoh, Easy to Use for Comfortable Pumping
B0CBT9ZJ9T
$5.88
4.3 (2.5K)
Momcozy Nipple Ruler for Flange Sizing, Soft & Flexible Silicone Measurement Tool for Breast Pump Sizing, Compatible with Momcozy, Medela, Spectra, Lansinoh, Easy to Use for Comfortable Pumping
2,000 Units Sold/mo▼ 50.0%
5
Flange Insert 13/15/17/19/21mm 10PCS Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra etc Electric Breast Pump 24mm Flange/Shield, Reduce 24mm Tunnel Down to Correct Size
B0CL96VP1C
$6.99
4.6 (576)
Flange Insert 13/15/17/19/21mm 10PCS Compatible with Momcozy S12 Pro/S9 Pro/S12/S9/Medela/Spectra etc Electric Breast Pump 24mm Flange/Shield, Reduce 24mm Tunnel Down to Correct Size
1,000 Units Sold/mo
10
Nursi Luna Flange Sizing Kit with 13/15/17/19/21mm for 24mm Electric Breast Pump Flanges/Shields, 10PCS Soft Silicone Flange Inserts for Enhanced Pumping Comfort, BPA-Free Pump Essential for Moms
B0DT3QZ6Q2
$9.99
4.6 (377)
Nursi Luna Flange Sizing Kit with 13/15/17/19/21mm for 24mm Electric Breast Pump Flanges/Shields, 10PCS Soft Silicone Flange Inserts for Enhanced Pumping Comfort, BPA-Free Pump Essential for Moms
900 Units Sold/mo▼ 50.0%
View All 143 Products & Deep InsightsGet full access to sales data, trends, and market analysis

For sellers and category managers benchmarking the flange insert kit price landscape, we segmented all 143 tracked listings in Amazon's live "flange insert kit" search results across the full price spectrum, and surfaced the top 3 price tiers by share below to highlight where competition concentrates and where pricing gaps exist.

Leading the distribution, the $0.00 ~ $10.00 band is the category's best flange insert kit price zone, absorbing 46% of the assortment (202 products) — this is where listing density is highest and where new entrants face the steepest competition for share-of-voice. Use the tier breakdown below to identify the top-ranking ASIN, monthly sales velocity, and rating profile within each band — essential inputs for pricing strategy, sourcing decisions, and competitive benchmarking in the flange insert kit category.

Top 3 Price Tiers

$0.00 ~ $10.00 is the most competitive price tier, containing 46% of tracked products.

Sweet Spot
$0.00 ~ $10.00
Tier 1
46%
202 products

Top products in this price tier

#1
B0CMPBBHMZ
$9.99
10k Units Sold/mo
Unlock Top Performers
#2
$10.00 ~ $20.00
Tier 2
35%
154 products
$20.00 ~ $50.00
Tier 3
13%
56 products
$50.00 ~ $100.00
4%
Unlock to view all price tier distributions and their ASIN sales contributions

"Flange insert kit" Search Volume and Market Trends on Amazon

Amazon keyword search volume data for "flange insert kit" in the US marketplace. This report provides insights into keyword search volume, Amazon search trends, competition levels, and conversion efficiency for sellers and brands.

During the week of 2026-06-21 to 2026-06-27, the Amazon USweekly search volume for "flange insert kit" was approximately 131 searches. The keyword currently holds an Amazon Search Frequency Rank (SFR) of #1,290,613, dropping 149,208 positions from the previous week. Additionally, the top 3 products for this keyword capture 82.6% of the total click share and 89.5% of the conversion share, indicating the level of market concentration.

Amazon Search Term
Weekly

flange insert kit

ASINSIGHT
Search Frequency Rank
1,290,613
149,208
Search Volume
131
13.2%
Top 3 Click Share
82.6%
Top 3 Conv. Share
89.5%

Search Volume Trend

Past 3 Years
Past 4 Months
Recent 8 months
Weekly Search Volume
131
View full trends for the past 3 years
JunJulAugSepOctNovDecJanFebMarAprMayJun
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