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4" Ventilation Combo

RRP: $215.00
$189.99 (You save $25.01)

 Product Description

The 4" Ventilation combo is the perfect way to reduce odors and clean the air in your grow area.  Suited for spaces up to 150 Cubic Feet (up to a 4' x 8' grow tent). This combo includes:


  • Phat Filter, 4" x 8", 150 CFM

Phat Filters are packed full with the very best carbon on the market… and we have the independent lab test numbers to prove it.

How do we know? Simple math.

Carbon Quantity x Carbon Quality = Filter Capacity

QUANTITY: When we say Phat Filter carbon beds are 2" thick, they are in fact, 2" thick. The same is true when it comes to Phat Filter bed length size; the size we claim is in fact the actual size, not a “rounded-up” dimension to make it seem bigger. So it stands to reason that we can obviously pack more carbon into our fi lters than some others can claim.

QUALITY: Phat Filter’s quality is also backed up by math and science too. ADsorption Yield (adsorption with a “d”) is the key. It tells you how good the carbon is. So how do you find the Adsorption Yield?

It’s an easy equation:

Dry Apparent Density x Butane Number = Adsorption yield

A high adsorption yield number equals a greater capacity to adsorb odors, which in turn means the filter is of higher quality and will sustain a longer life-span. This is critical when choosing a quality carbon filter like a Phat Filter.

So compare the numbers and you’ll see for yourself that Phat Filters are easily the best deal in the marketplace today! Phat Filters numbers don’t lie.

For more information about Phat Filters visit www.phatfilter.com


  • Active Air 4" Inline Duct Fan, 165 CFM

Active Air Inline Duct Fans offer innovation and performance at a great price. With a full line of fans to meet your needs, all Active Air Fans feature:

  • Durable ceramic-coated metal housing
  • UL-recognized components
  • High quality molded impeller
  • Low noise output
  • Thermally-protected AC motor
  • Includes mounting brackets and 8 foot pre-wired 120V cord


  • Non-Insulated Air Duct, 4" - 25'

Rely on Active Air non-insulated air ducting with your reflectors, exhaust systems, and other systems.


  • Durable construction for lasting performance
  • Dual layer thickness
  • 2 stainless steel clamps included
  • 25' of ducting
  • Can withstand temperatures of -4°F to 175°F
  • AS 4254 - 1995 fire rating

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20.00 LBS
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