Spectra Flange Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

July 2026

Spectra Flange sales on Amazon US totaled 77,700 units in July 2026 (▼ 0.6% vs. the prior month), generating an estimated $1,309,589 in revenue across the 50 top-ranked ASINs for this search term. Demand is heavily concentrated at the top of the ranking — the ten best performers capture 55.3% of unit volume and 43.1% of revenue, while a typical listing is priced at $18.92. The keyword itself pulled 19,076 Amazon queries over the same period (▲ 5.6% MoM).

Zooming out to the 12-month window ending July 2026, the spectra flange Top 50 moved 810,450 units and $12,935,713 in cumulative sales — an average of 67,538 units and $1,077,976 per month. Monthly throughput topped out at 81,450 units in August 2025 and dipped to 46,800 in May 2026, leaving the latest reading 4.6% lower than August 2025.

810.5KTotal units sold · Last 12 months
$12.9MTotal revenue · Last 12 months
19.1K▲ 5.6% MoM
Monthly search volume
$18.92Avg. price · July 2026

Spectra Flange Sales Trend (Trailing 12 Months)

Based on the top 50 ASINs by monthly sales for this keyword

Sales
Revenue

2025/08

Sales81.5K
Revenue$1.2M

2025/09

Sales67.3K
Revenue$1M

2025/10

Sales64.2K
Revenue$1M

2025/11

Sales56.9K
Revenue$911.2K

2025/12

Sales51.4K
Revenue$859.6K

2026/01

Sales70.1K
Revenue$1.1M

2026/02

Sales72.8K
Revenue$1.1M

2026/03

Sales72.3K
Revenue$1.2M

2026/04

Sales71.3K
Revenue$1.2M

2026/05

Sales46.8K
Revenue$756.7K

2026/06

Sales78.2K
Revenue$1.3M
77.7K

2026/07

Sales77.7K
Revenue$1.3M
25/0925/1126/0126/0326/0526/07
ASINSIGHT
Source: www.asinsight.com

Monthly Sales 2026/07

77.7K

▼ 0.6% MoM

Monthly Revenue 2026/07

$1.3M

▲ 0.1% MoM

Top 10 Market Share 2026/07

55.3%

See the Top 10 ASINs driving 55.3% of sales

Spectra Flange Market Share & Sales Concentration on Amazon US — July 2026

The most-sold spectra flange listing on Amazon US in July 2026 is ASIN B0CMPBBHMZ (Brand: Nuliie), which sold 10,000 units at $9.99 apiece — equal to 12.9% of every unit tracked in this report and 43% ahead of the No. 2 listing.

The Top 10 ASINs account for 43,000 units and $564,990 in July 2026 — 55.3% of unit volume and 43.1% of revenue among all 50 ranked ASINs in this report.

Sales Volume of Top ASINs for 'Spectra Flange' on Amazon

July 2026
ASINSIGHT Logo
55.3% Volume Share 43K units sold
43.1% Revenue Share $565K estimated
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Top 5 Volume Share breakdown

B0CMPBBHMZ 12.9%
B0CKZH37FX 9.0%
B0CY81WHD5 7.7%
B0CSYR8JG2 6.4%
B08MWQQN6W 5.1%
Others 58.8%
#1
Nuliie Silicone Flange Inserts 13/15/17/19/21mm 10PCS for 24mm Breast Pump | Compatible with Spectra, Includes Nipple Sizer for Flanges for Accurate Sizing, Boosts Pumping Efficiency & Comfort, BPA-free

B0CMPBBHMZ

Nuliie Silicone Flange Inserts 13/15/17/19/21mm 10PCS for 24mm Breast Pump | Compatible with Spectra, Includes Nipple Sizer for Flanges for Accurate Sizing, Boosts Pumping Efficiency & Comfort, BPA-free

$9.99· 4.6·4.5K reviews
Monthly Sales

10K

▲ 0.0%

vs. prior month

Revenue

$99.9K

latest month

Monthly Trend

12-month trend

#2
Nursi Luna Flange Sizing Kit, Flange Inserts for 24mm Breast Pumps, 10PCS | 13/15/17/19/21mm, Compatible with Spectra & Medela, Nipple Sizer for Flanges to Find the Right Fit, Comfortable Pumping

B0CKZH37FX

Nursi Luna Flange Sizing Kit, Flange Inserts for 24mm Breast Pumps, 10PCS | 13/15/17/19/21mm, Compatible with Spectra & Medela, Nipple Sizer for Flanges to Find the Right Fit, Comfortable Pumping

$9.99· 4.5·2.2K reviews
Monthly Sales

7K

▼ 12.5%

vs. prior month

Revenue

$69.9K

latest month

Monthly Trend

12-month trend

#3
Nursi Luna Flange Sizing Kit for 24mm Breast Pumps, 10PCS | 13/15/17/19/21mm Flange Inserts, Nipple Measurement Tool, Fit Electric & Manual Pumps, Soft Silicone, Comfortable Pumping

B0CY81WHD5

Nursi Luna Flange Sizing Kit for 24mm Breast Pumps, 10PCS | 13/15/17/19/21mm Flange Inserts, Nipple Measurement Tool, Fit Electric & Manual Pumps, Soft Silicone, Comfortable Pumping

$9.99· 4.6·2.2K reviews
Monthly Sales

6K

▲ 0.0%

vs. prior month

Revenue

$59.9K

latest month

Monthly Trend

12-month trend

#4
PUMPMOM-US Breast Pump Parts for Spectra, Replace Duckbill Valves Tubes Backflow Protector Membrane for Spectra S1 S2 9 Plus Breastpumps

B0CSYR8JG2

PUMPMOM-US Breast Pump Parts for Spectra, Replace Duckbill Valves Tubes Backflow Protector Membrane for Spectra S1 S2 9 Plus Breastpumps

$16.98· 4.7·1.2K reviews
Monthly Sales

5K

▼ 16.7%

vs. prior month

Revenue

$81.8K

latest month

Monthly Trend

12-month trend

#5
Legendairy Milk Duckbill Valves for Spectra Breast Pumps, 6 Ct, BPA-Free | Pink food-grade silicone valves with pull tabs fit Spectra, Medela, Motif, BabyBuddha & Zomee; easy to clean, strong suction.

B08MWQQN6W

Legendairy Milk Duckbill Valves for Spectra Breast Pumps, 6 Ct, BPA-Free | Pink food-grade silicone valves with pull tabs fit Spectra, Medela, Motif, BabyBuddha & Zomee; easy to clean, strong suction.

$12.99· 4.4·1.7K reviews
Monthly Sales

4K

▲ 33.3%

vs. prior month

Revenue

$52K

latest month

Monthly Trend

12-month trend

#6
Maymom Widemouth Connector 2pc Compatible w Spectra S1 Spectra S2 Pump; Compatible with Medela PersonalFit Shield, Pumpin Pal Shield, Lansinoh Flange, Maymom MyFit Shields, MyFit Crater Shield

B07WD385MM

Maymom Widemouth Connector 2pc Compatible w Spectra S1 Spectra S2 Pump; Compatible with Medela PersonalFit Shield, Pumpin Pal Shield, Lansinoh Flange, Maymom MyFit Shields, MyFit Crater Shield

$17.49· 4.7·1.9K reviews
Monthly Sales

3K

▲ 0.0%

vs. prior month

Revenue

$52.5K

latest month

Monthly Trend

12-month trend

Unlock to view all Top 50 ASIN competitors and their sales contributions

Best Spectra Flange Brands on Amazon US — Top 3 Brand Sales Concentration (July 2026)

Nursi Luna is the best-performing spectra flange brand in July 2026, moving 13,000 units across 2 ASINs for 30.2% of Top 10 volume. Nuliie follows with 10,000 units (23.3%), ahead of Maymom on 9,000 units (20.9%).

With 6 brands splitting the Top 10 and 74.4% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $9.99 to $18.84, which frames the price band a competing listing has to justify.

Brand share of Top 10 volume

30.2%
23.3%
20.9%
25.6%
Nursi Luna
Nuliie
Maymom
Other brands
1

Nursi Luna

2 ASINs in Top 10

30.2%

Units

13K

Revenue

$129.9K

Avg. price

$9.99

  • Nursi Luna Flange Sizing Kit, Flange Inserts for 24mm Breast Pumps, 10PCS | 13/15/17/19/21mm, Compatible with Spectra & Medela, Nipple Sizer for Flanges to Find the Right Fit, Comfortable Pumping

    B0CKZH37FX

    $9.99·4.5·2.2K revs

    Nursi Luna Flange Sizing Kit, Flange Inserts for 24mm Breast Pumps, 10PCS | 13/15/17/19/21mm, Compatible with Spectra & Medela, Nipple Sizer for Flanges to Find the Right Fit, Comfortable Pumping

    Units sold7K
  • Nursi Luna Flange Sizing Kit for 24mm Breast Pumps, 10PCS | 13/15/17/19/21mm Flange Inserts, Nipple Measurement Tool, Fit Electric & Manual Pumps, Soft Silicone, Comfortable Pumping

    B0CY81WHD5

    $9.99·4.6·2.2K revs

    Nursi Luna Flange Sizing Kit for 24mm Breast Pumps, 10PCS | 13/15/17/19/21mm Flange Inserts, Nipple Measurement Tool, Fit Electric & Manual Pumps, Soft Silicone, Comfortable Pumping

    Units sold6K
2

Nuliie

1 ASIN in Top 10

23.3%

Units

10K

Revenue

$99.9K

Avg. price

$9.99

  • Nuliie Silicone Flange Inserts 13/15/17/19/21mm 10PCS for 24mm Breast Pump | Compatible with Spectra, Includes Nipple Sizer for Flanges for Accurate Sizing, Boosts Pumping Efficiency & Comfort, BPA-free

    B0CMPBBHMZ

    $9.99·4.6·4.5K revs

    Nuliie Silicone Flange Inserts 13/15/17/19/21mm 10PCS for 24mm Breast Pump | Compatible with Spectra, Includes Nipple Sizer for Flanges for Accurate Sizing, Boosts Pumping Efficiency & Comfort, BPA-free

    Units sold10K
3

Maymom

4 ASINs in Top 10

20.9%

Units

9K

Revenue

$170.5K

Avg. price

$18.84

  • Maymom Widemouth Connector 2pc Compatible w Spectra S1 Spectra S2 Pump; Compatible with Medela PersonalFit Shield, Pumpin Pal Shield, Lansinoh Flange, Maymom MyFit Shields, MyFit Crater Shield

    B07WD385MM

    $17.49·4.7·1.9K revs

    Maymom Widemouth Connector 2pc Compatible w Spectra S1 Spectra S2 Pump; Compatible with Medela PersonalFit Shield, Pumpin Pal Shield, Lansinoh Flange, Maymom MyFit Shields, MyFit Crater Shield

    Units sold3K
  • 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

    $29.99·4.6·9.2K revs

    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 sold2K
  • Maymom Duckbill Valves Compatible with Spectra S1 S2 9 Plus Dew 350 Not Original Spectra Pump Parts S2 Accessories Replace Valve (White, 6ct)

    B07SNHJPX1

    $8.90·4.7·9.7K revs

    Maymom Duckbill Valves Compatible with Spectra S1 S2 9 Plus Dew 350 Not Original Spectra Pump Parts S2 Accessories Replace Valve (White, 6ct)

    Units sold2K
  • Maymom 19mm Flange and Duckbill Valve Compatible with Spectra S1 S2 Breastpump Not Original S2 Accessories Not Original Spectra Replacement Duckbill Valve and Flange

    B0863MVC1T

    $18.98·4.6·6.1K revs

    Maymom 19mm Flange and Duckbill Valve Compatible with Spectra S1 S2 Breastpump Not Original S2 Accessories Not Original Spectra Replacement Duckbill Valve and Flange

    Units sold2K

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