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4-Inch CleanFlow HEPA Filter

  • Based on 56 reviews
Condition: New
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Availability: In Stock.
Fulfilled by HTGSupply

Arrives Apr 25 – Apr 29
Order within 8 hours and 37 minutes
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Features

  • High-efficiency particulate arrestance (HEPA) filter for 4" round duct/flange air intakes
  • Blocks 99.97% of particles at .3 micrometers while providing excellent airflow
  • High-efficiency particulate arrestance (HEPA) filter for 4" round duct/flange air intakes
  • Features easy-install rubberized collar with steel clamp for a proper seal
  • Measures (max): 7.25" long x 6.125" diameter, 4" female flange

Description

Improve air quality in the grow area with GrowBright CleanFlow HEPA Filters. GrowBright high efficiency particulate arrestance (HEPA) filters remove 99.97% of airborne particles at .3 micrometers. Highly efficient filtration with excellent airflow also makes GrowBright CleanFlow HEPA filters the most effective option for keeping expensive air-cooled lighting equipment clean and free of debris. CleanFlow HEPA filters install easily over rigid duct/flanging and secure tightly with a rubberized collar and steel clamps for a proper seal, and they can also be washed as needed for extended life. Simply remove and spray with a water hose to clean. Please Note: HEPA filters are recommended for use with high-velocity inline fan or blower fan units as they may create too much restriction for smaller fan types such as duct booster or small axial fans.

Brand: GrowBright


Material: Glass Fiber


Product Dimensions: 7.25"L x 6.13"W x 4"Th


MERV Rating: 13


Compatible Devices: Blower Fan, Inline Fan


Item Weight: 3 Pounds


Air Filter Construction: Pleated


Number of Items: 1


Manufacturer: GrowBright


Product Grade: new


MERV Rating: 13


Compatible Devices: Blower Fan, Inline Fan


Product Grade: new


Common Applications: Appliances, Residential


Item Dimensions L x W x Thickness: 7.25"L x 6.13"W x 4"Th


Item Weight: 3 Pounds


Unit Count: 1.0 Count


Material Type: Glass Fiber


Air Filter Construction: Pleated


Brand Name: GrowBright


Model Number: RM


Number of Items: 1


Manufacturer: GrowBright


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Apr 25 – Apr 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Awsome filter
No fittiment issues.
Reviewed in the United States on March 19, 2023 by Kids

  • Works, abd very durable.
bought for 3d printer enclosure, works great no detectable increase in pm 2.5 or pm1.0 from 3d prints. This combined with a carbon filter and inline fan, create a negitive pressure for the enclosure. There is no longer a smell when printing abs. FYI I heat my enclosure to 53c so this filter is inside and exposed to that temp for sometimes 15 hours none stop. ... show more
Reviewed in the United States on July 18, 2020 by Fred McFeeters

  • very high quaityfilter.
using to remove spores from exhaust air in a mushroom growing chamber. Water washable if you let it dry completely beffore usee. rinse water was milky white with pleurotis spores. stated pore size is effective for most all mushroom spores.
Reviewed in the United States on May 19, 2022 by Ronald S. Montefusco

  • Great so far!
I purchased this as part of my mushroom growing hobby. I put this hepa filter on the outside of my tent so that only filtered air comes in. It was easy to install on my blower fan and after about 2 months has worked flawlessly. It's a little expensive, but so are all HEPA filters in my book. I'll purchase this again when the time comes. ... show more
Reviewed in the United States on December 8, 2023 by Morty

  • Five Stars
Great filter
Reviewed in the United States on February 24, 2018 by Amazon Customer

  • Good but still testing
I may rate this higher. Not sure if ‘true’ HEPA’ but I’ve put carbon pellets I. The basket and running in with a inline du t fan and plan to add more of these in a 5-6 foot run. This is a cheap but may efficient way to get lots if filtered airflow. Seems expensive and needs HELA certification to be 5 stars ... show more
Reviewed in the United States on August 24, 2025 by michael

  • Good service
Fast shipping awesome filter reusable !!
Reviewed in the United States on March 12, 2020 by Ian Beard

  • This filter is not Hepa rated.
Went through 2 of them. Both high particle counts under 1 micron. Almost the same as ambient. Does not seem to actually be hepa rated. Not sufficient for a lab. Great for adding positive pressure, great form factor, but not clean. Used for growing mushrooms.
Reviewed in the United States on November 7, 2024 by JShearer

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