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

July 2026
144 Products Tracked

Looking for the most popular flange 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 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 kit market with 10K monthly sales, followed closely by B0CKZH37FX with 7K monthly sales and B0CY81WHD5 with 6K monthly sales. Meanwhile, ASIN B07LBD522D 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/sold7K
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
🚀Fastest Growing
by MoM sales growth
Maymom Pump Parts Compatible with Spectra S2 S1 Replacement Kit for Spectra Pump Parts 24 mm Flange Duckbill Valve Tube Bottle Backflow Protector, Not Original S2 S1 Accessories
#1
B07LBD522D
$32.99·
4.6
Maymom Pump Parts Compatible with Spectra S2 S1 Replacement Kit for Spectra Pump Parts 24 mm Flange Duckbill Valve Tube Bottle Backflow Protector, Not Original S2 S1 Accessories
Units/sold
2K100.0%
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
B0CBT9ZJ9T
$6.99·
4.3
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
Units/sold
2K100.0%

Top Selling Flange Kit

As of July 2026, we analyzed 144 tracked products in Amazon's "flange 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 1,000 and 10,000 monthly sales. B0CMPBBHMZ leads the flange kit market with an estimated 10,000 monthly sales, up 11.1% from the previous month.

144Products Tracked
3,800Top 10 Avg. Sales
$16.58Top 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
▲ 11.1%
Units Sold/mo
$9.99
Price
4.6
Rating
4.2K
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
7,000 Units Sold/mo▲ 1.7%
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
Lansinoh Organic Pumping Spray – Lanolin-Free Flange Lubricant, Breast Pump Spray | Hypoallergenic, Vegan, Plant-Based Breastfeeding Essentials for Sore Nipples & Moisturized Skin, 2 Fl oz
B0FQLXQVKD
$14.88
4.7 (373)
Lansinoh Organic Pumping Spray – Lanolin-Free Flange Lubricant, Breast Pump Spray | Hypoallergenic, Vegan, Plant-Based Breastfeeding Essentials for Sore Nipples & Moisturized Skin, 2 Fl oz
6,000 Units Sold/mo▲ 66.7%
5
Maymom Pump Parts Compatible with Spectra S2 S1 Replacement Kit for Spectra Pump Parts 24 mm Flange Duckbill Valve Tube Bottle Backflow Protector, Not Original S2 S1 Accessories
B07LBD522D
$32.99
4.6 (9.1K)
Maymom Pump Parts Compatible with Spectra S2 S1 Replacement Kit for Spectra Pump Parts 24 mm Flange Duckbill Valve Tube Bottle Backflow Protector, Not Original S2 S1 Accessories
2,000 Units Sold/mo▲ 100.0%
10
Maymom 15mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve
B0BLCW8SVC
$19.98
4.7 (6K)
Maymom 15mm Flange and Duckbill Valve Compatible with Spectra S1 Spectra S2 Spectra 9 Plus Not Original Spectra Pump Parts Replace Spectra S2 Pump Parts Spectra Flange Spectra Duckbill Valve
1,000 Units Sold/mo▲ 42.9%
View All 144 Products & Deep InsightsGet full access to sales data, trends, and market analysis

For sellers and category managers benchmarking the flange kit price landscape, we segmented all 144 tracked listings in Amazon's live "flange 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 $10.00 ~ $20.00 band is the category's best flange kit price zone, absorbing 35% of the assortment (149 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 kit category.

Top 3 Price Tiers

$10.00 ~ $20.00 is the most competitive price tier, containing 35% of tracked products.

Sweet Spot
$10.00 ~ $20.00
Tier 1
35%
149 products

Top products in this price tier

#1
B0CMPBBHMZ
$9.99
10k Units Sold/mo
Unlock Top Performers
#2
$20.00 ~ $50.00
Tier 2
34%
144 products
$0.00 ~ $10.00
Tier 3
21%
88 products
$50.00 ~ $100.00
8%
Unlock to view all price tier distributions and their ASIN sales contributions

"Flange kit" Search Volume and Market Trends on Amazon

Amazon keyword search volume data for "flange 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 2026-06-28 to 2026-07-04, the Amazon USweekly search volume for "flange kit" was approximately 194 searches. The keyword currently holds an Amazon Search Frequency Rank (SFR) of #906,139, dropping 12,362 positions from the previous week. Additionally, the top 3 products for this keyword capture 71.1% of the total click share and 46.2% of the conversion share, indicating the level of market concentration.

Amazon Search Term
Weekly

flange kit

ASINSIGHT
Search Frequency Rank
906,139
12,362
Search Volume
194
1.5%
Top 3 Click Share
71.1%
Top 3 Conv. Share
46.2%

Search Volume Trend

Past 3 Years
Past 4 Months
Recent 8 months
Weekly Search Volume
194
View full trends for the past 3 years
JulAugSepOctNovDecJanFebMarAprMayJun
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