Grodan Improved Gro-Block Jumbo 6" x 6" x 4" Case of 64 pots (1) 2" Blocker - 4

(1) 2" Blocker - 4 Block with (4) 1/2" dowel pins

- Kit Duct Size: 8” | Fan Airflow: 807 CFM | Noise 42 dBA | Carbon Thickness: 38 mm | Ducting Length: 25 ft

Be sure to ask for them today at your favorite Hydroponic retailer

Nordic Pure 20x35x2 Trane Replacement RTU ( Roof Top Air Handling Unit) Pleated Air Filters MERV 13 are made of electrostatically charged synthetic materials that attract and capture most airborne particulates in your home

Grodan Improved Gro-Block Jumbo 6" x 6" x 4" Case of 64 pots (1) 2" Blocker - 4Description Product Details: Grodan Improved Jumbo (White Foil) 6" x 6" x 4" (Case of 64) Grodan Improved Jumbo (White Foil) 6" x 6" x 4" (Case of 64): Grodan Improved Grodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty crops. The result of months of scientific research and trials is Grodan