AC Infinity Inline Air Filter Box w/ MERV Filter - 200MM (8" Inch) | 1600CFMThe AC Infinity Inline Air Filter Box 200MM (8") is engineered to provide powerful and efficient air purification for large scale ventilation systems, hydroponic grow environments, and HVAC applications. Built from 1mm thick SPCC cold rolled steel with a matte black powder coated finish, it offers exceptional strength and long term durability even under demanding conditions. Equipped with a high performance MERV pleated filter, this duct filter box