Can Filter 33 Carbon Filter w/ out Flange 200 CFM

200 CFM 33 Can Filter Carbon Filters are high quality odor filters developed to be used in conjunction with an inline fan to eliminate odors and airborne pathogens. 4" or 6" flange kit sold separately.
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Additional Information

Name Can Filter 33 Carbon Filter w/ out Flange 200 CFM
Brand Can Fans & Filters
SKU 700609
Alternate SKU/MPN 358621
UPC 840470000113
Weight (lbs) 23.15
Warranty 5 Year
Dimensions 12" x 12" x 13"
MSRP $145.99
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Can-Filters® provides one of natures best odor control materials, activated carbon. Can CKV-4 (carbon type) is specially developed for this purpose. Rated at 200 CFM, flange not included.

Can Filter 33 Specifications
  • Max Recirculating (Scrubbing) CFM: 400 cfm / 700 m³h
  • Max Exhaust CFM: 200 cfm / 350 m³h
  • Recommended Min Airflow: 100 cfm / 175 m³h
  • Prefilter: Yes
  • Flange: 4", 6"
  • Pressure drop at max cfm: 180pa / .75"wg

  • Dimensions: (with pre-filter)
  • Outside Diameter: 30.5cm / 12"
  • Height: 33cm / 13"
  • Total Weight: 11.5kg / 25.3lbs.
  • Carbon Weight: 7.5kg / 16.5lbs.
  • Carbon Bed Depth: 5cm / 2"
  • Max Operating Temp: 80ºC

  • How To Size Fan to Filter
    To match a Can Filter for your size growing environment, use this formula: Length x Width x Height divided by 3. This figure will give you the minimum recommended CFM for your fan. Then match your inline fan to the size filter you need by getting one that's within the range that the Can Filter can operate within.

    Example, 10 x 10 x 20 = 2000 Cu. Ft.
    2000 Cu. Ft./3 = 667 CFM

    667 CFM fan is the minimum fan size for this area. After establishing fan size, match it to appropriate sized filter, IE, Can 100.

    How Much CFM Loss Through A Carbon Filter?
    Every different size of filter provides a different resistance to each different size and style of fan you put on it, a filter at the maximum exhaust CFM rating has approximately 0.7 wg. pressure drop. All Fans will have a lower CFM at a higher pressure. For Example at .5 wg the 10" Max-Fan goes from 1019 CFM to 885 CFM, the 12" Max-Fan would go from 1708 CFM to 1595 CFM.

    How much CFM is lost through a 25ft. Section of ducting?
    Approximately 3%(straight hard cast) to 7%(flex ducting). 1% to 4% Additional loss for every 90° bend.

    Do I need to replace the pre-filter?
    It is a good idea to replace the pre-filter when they become dirty because the pre filter is blocking larger dirt and dust particles from getting into the pore structure of the carbon, a dirty pre filter increases the pressure, which will decrease the flow through the filter.

    Can my Filter be refilled?
    Technically the filter can be re-filled, but it is not a good idea to self-fill the filters at all, the reason for this is that Can-Filters uses an industrial shaker with timed intervals and a dust extraction system, to ensure a packed carbon bed. This eliminates the possibility of preferred air channels through the filter, because as we all know, air does not wait in line to go through a filter it finds the path of least resistance and crowds in. So if you tried packing the filter yourself, as soon as you got it as full as you think you could get it, attached a fan and turned it on, the fan would vibrate the carbon, and over time the carbon would settle and you would be left with air gaps all over the place presenting the air with channels to flow through the filter and possibly leave untreated.

    Customer Reviews

    Add Your Review
    Best filters for scrubbing Review by Morning Wood
    Overall Rating
    While other filters may work well for exhaust purposes, few stand up to the task of scrubbing a sealed environment. These Can 33s work well with a 400cfm fan to constantly scrub the air in a sealed 10x10x8 environment. This is the 6th one that i have owned. If you were to walk into the room mid flower with a blindfold on, you would have no idea where you were or what was in the room. For the can filters, buy one that is rated for 1/4 the room volume, and put double the fan cfm on it. For example- buy a can 33 (with 200 cfm exhaust rating) for an 800 cubic ft room, and put a 400 cfm fan on it 24/7. That setup will last a good 9 months before needing replacement. (Posted on 10/5/2017)
    great product Review by mike
    Overall Rating
    Great product. This can filter works ! Great price also. Grower's house rocks! Have ordered several times from them. (Posted on 12/9/2016)
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