4 inch paint brush
Worth a lookShows searches that convert (14.3% search→purchase), but a small market ($51K/yr) keeps it on the watch list.
Conversion
Incredible14.3%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Growth
Good+45.5%90-day search growth — must beat 0% to launch
Price range
Good$5.18–$31.55cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Good$12.19avg listing price — sweet spot $15–$100
Competition
Okay58%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Okay88%top-5 brand share — brands hold most of the demand
Review moat
Bad4,876.06avg incumbent reviews — the moat a new listing must climb
Market size
Bad$51K$51K/yr · 29K searches
According to Flapen's Amazon United States niche tracking, 4 inch paint brush is a $51K/yr Amazon United States market (29K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in Jun–Jul. Verdict: Worth a look — 51/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
4 inch paint brush market data
- Units sold / yr
- 5K–6K
- avg 250–500/product
- Revenue / yr
- $61K–$73K
- units × avg price
- Conversion rate
- 14.3%
- Avg BSR
- #103
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 88%
- Out of stock
- 0.0%
- Avg brand age
- 56 months
- Avg seller age
- 189 days
Competition & brand share
The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them.Brands
8 falling
Sellers
12
Top-5 brand share
88%
Top 20: 100%
Top-5 click share
58%
Top 20: 100%
Open market
8%
- Bates Choice53%
- Genixart13%
- Pro Grade11%
- Greatandrew6%
- PiuQiuPia5%
- Wesquer4%
- Open — no brand owns it (2 brands, 8%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +45.5% search growth over the last 90 days.Peak months: Jun, Jul · busiest ÷ quietest = 2.7×
Top 4 inch paint brush search terms
- 4 inch paint brush14K/yr
- 4 paint brush10K/yr
- 4 inch paint brushes4K/yr
- paint brushes 4 inch wide2K/yr
Top 4 inch paint brush 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 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Bates- Paint Brushes 4-Inch 4 Pack Flat Paint Brushes
Bates Choice$8.844.4★332 rev
Genixart Double Thick Chip Paint Brush Wood Stain Brush for Fence 4 Inch
Genixart$6.634.6★659 rev
Genixart Double Thick Chip Paint Brush Wood Stain Brush for Fence 3 Inch
Genixart$6.044.6★852 rev
Great Andrew 4 Paint Brush Wood Handle Large Wide Brush
Greatandrew$5.184.2★5 rev
Bates- Deck Stain Brush 4 Inch 2 Pack Wooden Handle Brushes
Bates Choice$7.614.7★117 rev
Newest
by launch date
Wesquer 4 Inch Paint Brushes 2 Pack Flat Professional Limewash Paint Brush Extra Large Brushes for Walls Deck Exterior House Fence Painting
Wesquer$9.4212 rev
Great Andrew 4 Paint Brush Wood Handle Large Wide Brush
Greatandrew$5.185 rev
Bates- Deck Stain Brush 2 Pack 4 Inch Soft Tip Wood Stain Brushes for Wood Brass Plated Steel Ferrule Ergonomic Handle
Bates Choice$10.54637 rev
Bates- Deck Stain Brush 4 Inch 2 Pack Wooden Handle Brushes
Bates Choice$7.61117 rev
Bates- Paint Brushes 4-Inch 12 Pack Treated Wood Handle Paint Brushes for Walls Stain Brush Wall Paint Brushes Furniture Paint Brush Paint Brushes for Painting Walls Painting Brush
Bates Choice$20.5489 rev
Trending
90-day click momentumWesquer 4 Inch Paint Brushes 2 Pack Flat Professional Limewash Paint Brush Extra Large Brushes for Walls Deck Exterior House Fence Painting
Wesquer$9.424.3★
King Origin 4 Inch Paint Brush 1-Pack Wide Paint Brush
KingOrigin$5.214.5★
Bates- Paint Brushes 4-Inch 12 Pack Treated Wood Handle Paint Brushes for Walls Stain Brush Wall Paint Brushes Furniture Paint Brush Paint Brushes for Painting Walls Painting Brush
Bates Choice$20.544.6★
Great Andrew 4 Paint Brush Wood Handle Large Wide Brush
Greatandrew$5.184.2★
Bates- Deck Stain Brush 2 Pack 4 Inch Soft Tip Wood Stain Brushes for Wood Brass Plated Steel Ferrule Ergonomic Handle
Bates Choice$10.544.6★
What buyers say about 4 inch paint brush
What buyers praise and complain about, mined from review topics.What buyers love
“The brushes are good quality”
“Great deal”
“Good quality brush”
“Paint brushes are amazing”
“clean easy”
“Just as advertised”
“They are all sizes”
“hold up well”
“Easy to use”
“It was smooth”
What buyers complain about
“Not pro quality”
“Real painters won't like this”
“Bristles were super flimsy”
“dont wanna clean the brushes”
“🖌️ These brushes are bigger than I was expecting”
“Too hard”
“The metal rusts a little”
“I was expecting a thicker brush”
“the photos are very deceptive”
“arent too durable”
Top return reasons
Common questions
- Is 4 inch paint brush profitable to sell on Amazon United States?
- The niche generates $51K/yr across 16 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +45.5%. Flapen's verdict: Worth a look (51/100).
- How competitive is the 4 inch paint brush niche?
- 8 brands and 12 sellers compete. The top 5 products take 58% of clicks and top 5 brands hold 88% of demand.
- What do buyers complain about in 4 inch paint brush?
- Top complaints mined from reviews: Quality-Overall, Paint Quality, Strength. The return rate is 0.8%.
- When does demand for 4 inch paint brush peak?
- Demand peaks in Jun–Jul; the busiest month runs 2.7× the quietest.
- What does it cost to enter the 4 inch paint brush niche?
- Listings span $5.18–$31.55; the average listing price is $12.19 (sweet spot $15–$100). The average incumbent carries 4,876 reviews — the moat a new listing must climb.