AC Infinity Air Filtration Kit 150 mm

A complete 150 mm extraction kit with a CLOUDLINE A6 fan, a carbon filter, 7.62 metres of ducting and the mounting hardware. Rated at 352 CFM (600 m³/h) at 34 dBA and 35 watts.

The 150 mm kit is the best-selling size and covers a 120 x 120 cm tent with room to spare. The component most people underestimate is in the box too, and it is the ducting.

Seven metres of ducting, and why it matters

The box holds 7.62 metres of four-layer flexible ducting, which is almost always more than you need. That is deliberate: you can always shorten it, you cannot extend it.

What many growers do is use the whole length and leave the surplus coiled above the tent. That costs you visible airflow. Corrugated ducting already offers more resistance than smooth pipe, and every extra metre and every bend adds to it. A coiled three-metre loop is three metres of friction plus a few bends you get nothing back for.

So cut the ducting to what you actually need and pull it taut. A short, straight run is quieter as well, because vibrating corrugated material makes noise of its own and a slack loop resonates with the fan.

Assembly order, and where it leaks

There are two ways to string these three components together, and they are not equivalent.

The usual order is filter, then fan, then ducting to the outside. The filter sits on the suction side, so the air is clean before it reaches the fan and the ducting. That keeps your ducting clean, and it means any leak after the filter lets odourless air through.

The reverse also works: fan first, filter on the pressure side. You do that when you want the filter outside the tent to save space. The price is that everything between tent and filter is pressurised with unfiltered air, so any leak in that stretch is an odour leak.

Where it goes wrong in practice is the joint itself. Push the ducting fully over the flange up to the lip, and put the clamp on the flange rim, not next to it on the ducting alone. A clamp gripping only ducting works its way off under vibration.

Hang filter and fan from separate points rather than one. Two points share the weight and keep the flanges square to each other; a joint pulled crooked drags the ducting off line and then leaks along the top.

What is in the box

• Fan: CLOUDLINE A6, 32.0 cm long, 21.2 cm high
• Controller: 3.5 x 6.9 x 1.4 cm, ten speeds plus a power switch
• Carbon filter: 36.0 cm long, 15.2 cm across
• Ducting: 7.62 metres, four layers, 15.2 cm across
• Hanging straps: 1.44 metres, rope hangers 2.43 metres
• Also included: duct clamps and pre-filter cloth

Technical Specifications:

• Model: AC-FKS6
• Collar: 150 mm (6 inch)
• Airflow: 352 CFM (600 m³/h)
• Noise: 34 dBA
• Power: 35 W
• Fan: CLOUDLINE A6 with EC motor and PWM control
• Controller: wired, ten speeds plus power switch
• Filter: Australian RC412 charcoal, 38 mm bed, reversible flanges
• Ducting: 7.62 metres, four layers
• Ingress protection: IP44

Frequently asked questions

May I shorten the ducting?
Yes, and it is worth doing. Cut it to length and pull it taut; every surplus metre costs airflow.

What if I need more length instead?
Ducting is sold separately by the metre in the same size. Bear in mind you then need headroom in the fan.

Will this kit suit a 120 x 120 cm tent?
Yes, comfortably. That volume asks for around 175 m³/h for one air change per minute.

Does the filter go before or after the fan?
Usually before, on the suction side. After it works if you want the filter outside the tent, but everything in between is then pressurised with unfiltered air.

My joint leaks air. What am I doing wrong?
Usually the clamp sits beside the flange rim instead of on it. Push the ducting fully over the flange and clamp on the rim.

Can I make it smart later?
Not with this fan: the A series has no UIS port. The PRO kit is the one for that.