4 inch carbon filter
Skip it37/100a small market ($55K/yr) — 4 inch carbon filter doesn't clear our bar today.
Market/yr
$55K
Growth (1y)
+98.5%
Products
14
Brands
9
was 12 a year ago
Sellers
11
Price range
$16.06–$89.42
Returns
2.4%
Rating
4.5★
Skip it
Scored 37/100 across market size, growth, competition, quality gap, and returns.
Demand
Weekly Amazon search volume, last 104 weeks — +98.5% year over year.Seasonality
Monthly demand index across the year — 1.00 is average.No pronounced peak months · busiest ÷ quietest = 1.5×
Competition
- VIVOSUN33%
- vanleno18%
- MELONFARM14%
- ATOUR13%
- AC Infinity12%
- HYDROWE4%
- Other (3 brands)6%
The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack. 9 brands and 11 sellers compete here.
Brands
9 falling
was 12 a year ago
Sellers
11
Top 5 brand share
90%
Product shelf
All 14 tracked products in this niche.
VIVOSUN 4 Inch Air Carbon Filter Smellines Control with Australia Virgin Charcoal for Inline Duct Fan Grow Tent Pre-filter Included Reversible Flange 4 x 12
VIVOSUN
$38.044.6★10,044 reviews
vanleno 4inch Carbon Filter Odor Control with Australia Virgin Charcoal Two Prefilter 1 Pair Rope Hanger Included for Inline Duct Fan Grow Tent Hydroponics Odor Scrubber
vanleno
$30.354.6★2,935 reviews
MELONFARM 4 Inch Air Carbon Filter Smelliness Control with Australia Virgin Charcoal Odor Removal Carbon Filter for Grow Tent Inline Fan Hydroponics Pre-Filter Included Insulated Flange 4 x 11
MELONFARM
$28.794.4★750 reviews
ATOUR 4 Air Carbon Filter with Australian Virgin Charcoal Superior Odor Control for Grow Tent Smelliniss Scrubber Inline Fans Hydroponics. Includes Pre-Filter & Insulated Flange 4x11
ATOUR
$28.144.6★18 reviews
AC Infinity Air Carbon Filter 4 with Premium Australian Virgin Charcoal for Inline Duct Fan Odor Control Hydroponics Grow Rooms
AC Infinity
$49.654.8★10,224 reviews
VIVOSUN 4 Inch Air Carbon Filter Smelliness Control with Australia Virgin Charcoal for Inline Fan Grow Tent Smelliness Scrubber Pre-Filter Included Reversible Flange 4 x 12 Black
VIVOSUN
$39.794.6★1,643 reviews
HYDROWE Air Carbon Filter 4 Inch Smellines Control Removes 3X More Odors Contaminants. Australian Virgin Charcoal Carbon Filter for Grow Tent Hydroponics Pre-Filter Included (4inch)
HYDROWE
$29.264.5★338 reviews
Air Duct Screen and Carbon Filter for 4 inch Air Ducts Vents Grow tents or fresh air intakes; Pre-filtration for light duty odors and dust; Atomic Innovations
Atomic Innovations
$16.064.4★653 reviews
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“No odor”
“The quality is really good”
“Amazing value for the quality you get”
“Works as described”
“Good filter”
“It's a good size”
“Many uses”
“Seems sturdy for a good price and easily installed”
“easily installed”
“Useful refill kit”
What buyers complain about
“so those chemical smells don't stand a chance of taking over the room”
“Not a big fan of the pre filters”
“Doesnt work once refilled”
“Garbage”
“Doesnt last long at all”
“Dented up”
“The last one I bought is not working at all”
“Too small”
“all the big names are copying their idead and charging double”
“messy”
Top return reasons
- Size-Overall49%
- Filtration13%
- Functionality-Overall9%
- Advertised Vs Actual Product8%
- Compatibility-Overall3%
- Smell3%
- Value For Money2%
- Leak-Proof2%
- Product Condition2%
- Defective Material/Parts1%