Carbon filters are no longer just for the ends of your air filtration system. Now they can be installed in-line like the lights and fans. It is the same Phresh® Carbon Filter users trust, built in to an air conserving body. Point to point air movement and filtration. Phresh® Inline Filters are state-of-the-art carbon filters that practically scour the air to clean it of dust, foreign particulates, organic compounds and odors. Phresh® Inline Filters are twice as light and last twice as long. Phresh® Inline FIlters are perfect for the following applications: grow tents, cupboards and cabinets; anywhere without a roof/ceiling cavity to displace extracted air into; air-cooled lighting; lower-level floors of double/triple story houses; window to window ventilation applications; hot or cold filtered air transfer from one air conditioned room to another. Item will not ship ground. Must ship on a pallet flat rate only.