Mammoth Lite Carbon Filters - Reliable Odour Control From 4" to 12"
Best for: Growers who need dependable smell control for a grow tent or small grow room, whatever the fan size, from a compact 4-inch starter setup right up to a 12-inch commercial-scale extraction line.
Our thoughts
The Mammoth Lite range uses the same grade of Australian RC48 activated carbon you'll find in filters costing a fair bit more, just without the extras you don't always need. We rate these as a straightforward, does-the-job option for anyone running a tent or two - match the size to your fan and you won't have odour complaints. It's one of the filters we sell the most of, and for good reason.
The Mammoth Lite Carbon Filter is a pre-filled activated carbon filter designed to strip odour compounds out of extracted air before it leaves your grow space. Inside each unit is a 38mm bed of RC48-grade virgin activated carbon, sourced from Australian carbon known for its large pore structure and strong absorption of the terpenes and other smells that give grow rooms away. The casing is lightweight aluminium, which keeps strain off your tent frame and rope ratchets compared with heavier steel-cased filters.
The range runs across eleven sizes, from a 4-inch (100mm) filter rated to 350 m3/h through to a 12-inch (315mm) unit rated to 4250 m3/h, so there's a filter to match almost any inline fan from a small cupboard grow up to a full commercial room.
How it compares
Mammoth sits in the mid-market for carbon filtration, one step below premium filters like Rhino Pro and Phresh but built on comparable carbon.
- Rhino Pro and Phresh filters use similar high-grade activated carbon and typically carry a higher price tag for broadly similar real-world odour control.
- The Mammoth Lite uses a lighter carbon bed depth than Mammoth's higher-spec Pro filters, which is why it's priced lower - fine for most tent growers, less suited to very high-odour commercial rooms running flat out.
- Aluminium casing keeps it noticeably lighter than steel-cased budget alternatives, which matters when it's hanging from tent poles.
You're getting proven carbon in a lighter, cheaper package - the trade-off is capacity at the very top end, not quality of the carbon itself.
Usage guidance
Getting the sizing and orientation right makes the difference between "no smell" and "why can I smell it in the hallway."
Matching filter to fan
Always size the filter to your inline fan, not the other way round - an undersized filter will choke your fan's airflow and cut extraction efficiency. As a rule of thumb, match the filter diameter to the fan diameter and check the m3/h rating covers your fan's rated output.
Installation orientation
The intake end (with the pre-filter sleeve) should face into the grow tent, drawing air through the carbon before it reaches the fan. Hang it using the built-in mounting points so its full weight is supported by the tent frame or a ceiling batten, not just the ducting.
Maintenance
Check and clean the removable pre-filter sleeve every few weeks to stop dust clogging the carbon prematurely. The main carbon bed itself typically lasts 6-12 months of continuous use before odour control starts to drop off and it needs replacing.
Technical specifications
- Carbon type: RC48-grade Australian virgin activated carbon
- Carbon bed depth: 38mm
- Casing: lightweight aluminium
- Expected carbon lifespan: 6-12 months continuous use
- Sizes available: 4" (100mm), 5" (125mm), 6" (150mm), 8" (200mm), 10" (250mm), 12" (315mm)
- Airflow ratings: 350 m3/h to 4250 m3/h depending on size
- Removable pre-filter sleeve for dust protection
- Price range: £31.99 to £229.99 across the size range
Who this is for
- Grow tent owners who need consistent odour control without paying premium-brand prices
- Growers scaling up from a small tent to a bigger room and needing a matching-size filter
- Anyone replacing a tired or oversized filter with something better matched to their fan
- Commercial growers on a budget who still need genuine RC48 carbon performance
Best suited to standard tent and small-room setups rather than industrial-scale, always-on extraction runs.
Our take
This is honest, no-nonsense odour control built around genuinely good carbon. You're not paying for a brand name, you're paying for a filter that does the one job it needs to do.
Pick the size that matches your fan, keep the pre-filter clean, and you'll get a good year or more of smell-free growing out of it. Does exactly what it should, day in, day out.
