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The two parts that make a flow hood work, ready for your own cabinet.

  • 24" x 18" x 2.8" H14 HEPA filter, 99.995% at 0.3 micron
  • Matched 1/10 HP centrifugal blower, 549 CFM at 1430 RPM
  • Pre-wired with cord and in-line switch: no electrical work
  • Choose the blower and filter bundle or the blower only
  • 1-year blower warranty
Price: $379.00
    Points to Purchase:37900
    • XL Blower & Filter Bundle
    • XL Blower Only


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    Item #: FL7
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    A laminar flow hood is really two parts: a HEPA filter and a blower sized to push air through it evenly. The cabinet around them is just a box. This kit gives you the two hard parts from Bonsai, a 24" x 18" H14 HEPA filter and a matched centrifugal blower, so you can build an XL hood that fits your space and your budget.

    Choose the blower and filter bundle for a complete build, or the blower only if you already have a filter. The blower comes pre-wired with a power cord and in-line switch, so there's no electrical work.

    • 24" x 18"H14 HEPA filter
    • 99.995%At 0.3 micron
    • 549 CFMAt 1430 RPM
    • 1/10 HPBlower motor
    • 1 yearBlower warranty

    Why build with this kit

    Matched airflow

    The blower is paired with the HEPAFLOW-XL filter, so air leaves the filter face at an even, laminar velocity instead of a guess from mismatched parts.

    No wiring

    Cord and in-line switch are already attached. Mount the blower, plug it in and flip the switch.

    Quality parts

    A private-label blower from the supplier that builds blowers for Sub-Zero and Wolf appliances, and a filter in an aluminum frame with a built-in gasket.

    What's in the box

    OptionIncludes
    XL Blower & Filter BundleHEPAFLOW-XL H14 HEPA filter (24" x 18" x 2.8") and the matched pre-wired centrifugal blower
    XL Blower OnlyThe matched pre-wired centrifugal blower
    Not includedCabinet, pre-filter and fasteners. You build the housing to fit your space.

    Building your hood

    1Build the box

    Make an airtight plenum with one face cut for the 24" x 18" filter and an intake sized for the blower.

    2Mount the blower

    Fasten it so it pushes air into the box, and add a pre-filter on the intake to protect the HEPA.

    3Seat the filter

    Set the filter with its gasket against the box so all air passes through the media.

    4Seal every seam

    Air should only leave through the filter face. Any gap lets unfiltered air bypass the HEPA.

    Rather not build it? The Bonsai XL 24" x 18" flow hood uses the same filter size in a ready-made birch cabinet that goes together in about 15 minutes.

    DIY XL kit specs

    SpecDetail
    BrandBonsai Filtration & Manufacturing
    FilterHEPAFLOW-XL H14 HEPA, 24" x 18" x 2.8"
    Filter efficiency99.995% at 0.3 micron
    Filter frameAluminum with built-in gasket
    Static pressure rating0.88 in.
    BlowerCentrifugal, 1/10 HP, pre-wired with cord and in-line switch
    Blower airflow549 CFM at 1430 RPM
    Warranty1-year blower warranty

    Complete the buildKeep a spare 24" x 18" XL replacement filter on hand, check your finished hood with the Lab Guard particle meter, and compare ready-made options in flow hoods.

    Common questions

    What comes in the blower and filter bundle?

    A 24" x 18" x 2.8" HEPAFLOW-XL H14 HEPA filter and a matched 1/10 HP centrifugal blower, pre-wired with a power cord and in-line switch. The cabinet is not included.

    Can I buy just the blower?

    Yes. Choose the XL Blower Only option if you already have a filter or are designing a custom build.

    Do I need to do any wiring?

    No. The blower ships with the cord and in-line switch already attached.

    Why does the box need to be airtight?

    Any gap lets air escape around the filter instead of through it. Sealing every seam forces all the air through the HEPA media, which is what makes the airflow clean.

    Does the same replacement filter fit later?

    Yes. The 24" x 18" XL replacement filter fits both this kit and the assembled Bonsai XL flow hood.

    Overall Customer Rating of 2 Reviews:
    review-star review-star review-star review-star review-star

    mr

    Rating:
    review-star review-star review-star review-star review-star
    Pros:
    • Price
    • quality.
    Cons:
    Both the fan and filter were as advertised and after making my own chamber I was able to achieve laminar flow. Great DIY kit if you want to ensure you have the correct fan and filter combo. The package arrived quickly and was extremely well packed. If you want to do it yourself or are looking to save some money on a flow hood, this is a great option

    Thank you!

    Rating:
    review-star review-star review-star review-star review-star
    Pros:
    Cons:
    Thanks for making a DIY bundle! I have been trying to find the right combo to build my own. Shipping was fast and I starting this project this weekend! Appreciate all the support as well!
    -Roger Quint

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