What does the Can Lite GT 425 PL (125mm Flange) actually do?
It removes odours and VOCs from your exhaust air using activated carbon, keeping your grow space discreet. It’s designed for exhaust setups, not intake, and won’t remove humidity — you’ll need ventilation or a dehumidifier for that.
What size fan and ducting should I use with this filter?
Match with a 125mm inline fan and 125mm ducting for best performance. You can use reducers, but they add airflow resistance and may reduce odour control efficiency.
What airflow is the Can Lite GT 425 PL rated for?
It’s rated for up to 425 m³/h (about 250 CFM), making it ideal for small to mid-size grow tents or rooms. Running slightly under max flow usually gives better smell control and filter life.
What does "PL" mean and is the filter durable?
“PL” stands for plastic housing — part of the lightweight Can Lite range. At only 2.2kg, it's easy to hang in tents. It’s not fragile, but treat it with care during mounting and transport.
What kind of carbon is used and is 25mm enough?
The filter uses CKG 48 Australian granulated carbon with a 25mm bed. That’s suitable for its airflow class if your setup is sealed properly and you avoid overdriving fan speed or running in high humidity.
Is a pre-filter included and do I need it?
Yes, a pre-filter is included and should always be used. It catches dust before it clogs the carbon bed, helping maintain airflow and extend the life of the filter. Clean it when it looks dirty or airflow drops.
How should I mount the Can Lite GT 425 PL?
Mount high in the tent since heat and odour rise. It can be installed horizontally or outside the tent if sealed well. Always support the filter securely — don’t let ducting carry the weight.
Should the fan pull or push air through the filter?
Pulling air through the filter (filter → fan → duct) is best. This setup reduces the risk of smelly air escaping from pressurized ducting or loose connections.
Does humidity affect the filter's performance?
Yes. It’s rated for up to 70% relative humidity. Higher levels can reduce effectiveness and shorten lifespan. Watering often spikes humidity, which is why odours may increase temporarily afterward.
Why is my ducting making noise after installing the filter?
Whistling or hissing usually means airflow turbulence from sharp bends, crushed ducting, or loose clamps. Smoother ducting and tight fittings help reduce noise and improve performance.
Why can I still smell odour even with the filter installed?
Top causes: duct leaks, fan speed too high, no negative pressure, or the filter is nearing end-of-life. Negative pressure means the tent walls pull in slightly — that’s how you know it’s sealed properly.
How long does the Can Lite GT 425 PL last?
With proper humidity and dust control, filters often last over a year. If smell returns, fan speed increases without improvement, or airflow drops despite cleaning, the carbon may be saturated.
Can I wash or refill the filter?
No. You can clean the pre-filter, but the carbon itself can't be washed or recharged. Once it's spent, the whole filter should be replaced. Running at moderate speed and keeping RH low helps extend its life.
Can it handle intense odours like drying or smoke?
Yes, it’s suitable for drying periods or other odour-heavy phases. Just ensure humidity stays controlled. It can help reduce smoke smells too, though heavy smoke may saturate the carbon faster.
How should I store the Can Lite GT 425 PL and what are its specs?
Store it sealed in packaging in a cool, dry place. Specs: 125mm flange, 425 m³/h max airflow, 145mm diameter, 600mm length, 2.2kg weight, 25mm carbon bed, CKG 48 carbon, plastic housing, pre-filter included, max 80°C, max 70% RH.
