Air Box Jr. HEPA Refill Microbial & Biostimulants Patented White + Red Spectrum:

Patented White + Red Spectrum: Patented multi-spectral white chip plus two rows of enhanced red lets you design spectrum around specific crops

Outside Dimensions: 37" x 37" x 3

Built-In Photocell Detecting Day/Night Mode

Find out why Hydrofarm quality extends to our buckets

For any drip block

Air Box Jr. HEPA Refill Microbial & Biostimulants Patented White + Red Spectrum:Special Order Note: Returns for Air Boxes not used are 14 days from the time of delivery. There is a 30% restocking fee and must pay for return shipping. This is the Air Box manufacturers return policy. Don't let unwanted air pollutens get in your grow room with this versatile Air box jr. From the maker of the original Air box, it eliminates 98% of all insects, molds, mildews, spores, pollen, dust, dander and other airborne particles down to 0. 3