Best Selling Fluidmaster 400a: See Top Product Rankings by Sales Volume & Market Trends

July 2026
131 Products Tracked

Looking for the most popular fluidmaster 400a 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 "fluidmaster 400a." 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 B07N7BH94Q currently leads the fluidmaster 400a market with 10K monthly sales, followed closely by B09NYLJ1FZ with 10K monthly sales and B0002YVK44 with 5K monthly sales. Meanwhile, ASIN B09NYLJ1FZ 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
Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank and Bowl Water Control, 1-Pack, Multicolor
1
B07N7BH94Q
$14.97·
4.6
Units/sold10K
Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit
2
B09NYLJ1FZ
$16.97·
4.6
Units/sold10K
Fluidmaster 400AKRP10 Universal, All In One, Complete Toilet Tank Repair Kit For 2-Inch Flush Valve Toilets
3
B0002YVK44
$21.23·
4.5
Units/sold5K
🚀Fastest Growing
by MoM sales growth
Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit
#1
B09NYLJ1FZ
$16.97·
4.6
Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit
Units/sold
10K100.0%
Korky QuietFILL Platinum Toilet Fill Valve - Universal Fits 99% of Toilets - Easy Height Adjust for Fast Install, 528MP
#2
B004TKTX14
$9.98·
4.5
Korky QuietFILL Platinum Toilet Fill Valve - Universal Fits 99% of Toilets - Easy Height Adjust for Fast Install, 528MP
Units/sold
5K100.0%

Top Selling Fluidmaster 400a

As of July 2026, we analyzed 131 tracked products in Amazon's "fluidmaster 400a" 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. B07N7BH94Q leads the fluidmaster 400a market with an estimated 10,000 monthly sales.

131Products Tracked
3,800Top 10 Avg. Sales
$16.55Top 10 Avg. Price
4.5Top 10 Avg. Rating
🏆
Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank and Bowl Water Control, 1-Pack, Multicolor
#1
B07N7BH94Q

Fluidmaster 400H-002 Performax Universal Toilet Fill Valve High Performance Tank and Bowl Water Control, 1-Pack, Multicolor

10,000
Units Sold/mo
$14.97
Price
4.6
Rating
16.9K
Reviews
2
Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit
B09NYLJ1FZ
$16.97
4.6 (4.3K)
Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit
10,000 Units Sold/mo▲ 100.0%
3
Fluidmaster 400AKRP10 Universal, All In One, Complete Toilet Tank Repair Kit For 2-Inch Flush Valve Toilets
B0002YVK44
$21.23
4.5 (7.7K)
Fluidmaster 400AKRP10 Universal, All In One, Complete Toilet Tank Repair Kit For 2-Inch Flush Valve Toilets
5,000 Units Sold/mo▲ 33.3%
4
Korky QuietFILL Platinum Toilet Fill Valve - Universal Fits 99% of Toilets - Easy Height Adjust for Fast Install, 528MP
B004TKTX14
$9.98
4.5 (6.6K)
Korky QuietFILL Platinum Toilet Fill Valve - Universal Fits 99% of Toilets - Easy Height Adjust for Fast Install, 528MP
5,000 Units Sold/mo▲ 100.0%
5
Fluidmaster 8300 Flush 'n Sparkle Automatic Toilet Bowl Cleaning System with Bleach Cartridge, 1 Count (Pack of 1) ( Packaging May Vary)
B0002YOQXQ
$12.98
4.2 (9.3K)
Fluidmaster 8300 Flush 'n Sparkle Automatic Toilet Bowl Cleaning System with Bleach Cartridge, 1 Count (Pack of 1) ( Packaging May Vary)
2,000 Units Sold/mo▲ 100.0%
10
American Standard Toilet Fill Valve, Universal 400A Tank Repair Part | Toilet Tank Repair Kit: Heavy Duty 10 Inch Inlet Valve, Check Compatibility, Includes Hardware | 7381125-400.0070A
B005GQ9MM0
$24.99
4.4 (1.8K)
American Standard Toilet Fill Valve, Universal 400A Tank Repair Part | Toilet Tank Repair Kit: Heavy Duty 10 Inch Inlet Valve, Check Compatibility, Includes Hardware | 7381125-400.0070A
1,000 Units Sold/mo▲ 100.0%
View All 131 Products & Deep InsightsGet full access to sales data, trends, and market analysis

For sellers and category managers benchmarking the fluidmaster 400a price landscape, we segmented all 131 tracked listings in Amazon's live "fluidmaster 400a" 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 fluidmaster 400a price zone, absorbing 29% of the assortment (61 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 fluidmaster 400a category.

Top 3 Price Tiers

$0.00 ~ $10.00 is the most competitive price tier, containing 29% of tracked products.

Sweet Spot
$0.00 ~ $10.00
Tier 1
29%
61 products

Top products in this price tier

#1
B07N7BH94Q
$14.97
10k Units Sold/mo
Unlock Top Performers
#2
$10.00 ~ $20.00
Tier 2
25%
54 products
$20.00 ~ $50.00
Tier 3
25%
54 products
$50.00 ~ $100.00
8%
Unlock to view all price tier distributions and their ASIN sales contributions

"Fluidmaster 400a" Search Volume and Market Trends on Amazon

Amazon keyword search volume data for "fluidmaster 400a" 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 2026-07-19 to 2026-07-25, the Amazon USweekly search volume for "fluidmaster 400a" was approximately 810 searches. The keyword currently holds an Amazon Search Frequency Rank (SFR) of #230,785, dropping 10,741 positions from the previous week. Additionally, the top 3 products for this keyword capture 61% of the total click share and 65.1% of the conversion share, indicating the level of market concentration.

Amazon Search Term
Weekly

fluidmaster 400a

ASINSIGHT
Search Frequency Rank
230,785
10,741
Search Volume
810
4.8%
Top 3 Click Share
61%
Top 3 Conv. Share
65.1%

Search Volume Trend

Past 3 Years
Past 4 Months
Recent 8 months
Weekly Search Volume
810
View full trends for the past 3 years
JulAugSepOctNovDecJanFebMarAprMayJunJul
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