What does the Can Lite Carbon Filter GT 1500 do?
It filters odours and VOCs from your grow space using activated carbon, keeping exhaust air clean and discreet. It’s ideal for controlling smells during flowering and drying phases. It doesn’t reduce humidity, and sprays or gels can shorten its lifespan—focus on sealing and airflow instead.
What size options are available for the GT 1500?
This filter comes pre-fitted with either a 200mm or 250mm flange. Choose the size that matches your fan and ducting to avoid restricting airflow. Avoid reducers unless absolutely necessary, as they add resistance.
What’s the airflow rating of the GT 1500?
It’s rated up to 1500 m³/h (around 883 CFM). Running just below this max flow helps improve odour control and filter life. If you push too much air through, odours can slip through due to reduced contact time.
Why might I still smell odour with the GT 1500 installed?
Common causes include duct leaks before the filter, fan speed too high, humidity over 70%, or a worn-out filter. Always confirm negative pressure and airflow direction, and seal all connections tightly.
What are the key specs of the GT 1500?
It measures 300mm in diameter, 750mm long, and weighs 15.5kg. It uses a steel housing, CKG 48 activated carbon, and a 50mm carbon bed for effective odour control. The perforated shell allows for even airflow distribution.
Does the GT 1500 come with a pre-filter?
Yes, and it’s important to use it. The pre-filter traps dust and debris before it hits the carbon, helping preserve airflow and extending filter life. A clogged pre-filter is one of the biggest causes of reduced performance.
How often should I clean or replace the pre-filter?
Clean it when it looks dusty or when airflow drops. In clean environments, every few months may be fine; in dusty sheds or garages, it could be every few weeks. Always let it dry completely before reinstalling.
Can I wash or recharge the carbon inside?
No. Only the pre-filter is washable. Once the carbon is saturated, the filter needs replacement. Recharging requires industrial equipment and isn’t feasible for most grow setups.
How long does the GT 1500 last?
In average grow conditions, it typically lasts 12–18 months. High humidity, excessive dust, or pushing airflow too hard can shorten its lifespan. Signs of wear include odour return and needing more fan speed for the same result.
Where should I mount the GT 1500?
Mount it high in the tent or room (hot smelly air rises). It can be installed inside or outside the space, vertically or horizontally—just support its weight and seal all duct joins. Most growers pull air through the filter rather than push into it.
What’s “negative pressure” and why does it matter?
Negative pressure ensures air is drawn through the filter rather than escaping through gaps. You’ll know it’s working if tent walls pull inward slightly. Without it, odour can leak even if the filter itself is working well.
Is the GT 1500 easy to install?
It’s straightforward mechanically, but the 15.5kg weight requires proper ratchet straps and sturdy support. Keep ducting short and straight, use clamps on every join, and seal seams with foil HVAC tape to avoid leaks.
Can I run the GT 1500 continuously?
Yes, and many growers do for full odour control. Just remember, the more you run it, the faster the carbon saturates. If smell risk is lower during lights-off, a controller can help reduce runtime and extend life.
Does the GT 1500 work in high humidity or long duct runs?
Yes, but with reduced efficiency. Keep RH below 70% for best results. Long ducting and silencers increase resistance, which reduces real airflow—balance is key to maintaining air exchanges and smell control.
