Hort2O 6"x16" Carbon Filter 400 cfm Water Pumps & Irrigation Supplies is the 18 oz size

is the 18 oz size (pack of 6)

a protein boost

Also works with the 50 series kits

Nordic Pure 14x14x1 MERV 12 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer

Growing style (nutrient brand

Hort2O 6"x16" Carbon Filter 400 cfm Water Pumps & Irrigation Supplies is the 18 oz sizeHort2O Carbon Filter Airflow Rating 200 400cu ft min 6in x 16in Duct Opening Fits Hort2O 6in Inline Fans The Hort2O Charcoal Filter contains virgin charcoal to provide filtration to your indoor growing ventilation system. Filters are constructed with aluminum flanges, steel meshing, and feature a clothed pre filter. The 6in flange is compatible with Hort2O Inline Fans with Speed Controller.