VIVOSUN R4 4 Inch 190 CFM Inline Duct Ventilation Fan with Variable Speed Controller for Grow Tent

VIVOSUN 4 Inch Air Carbon Filter Odor Control with Australia Virgin Charcoal for Inline Fan, Grow Tent Odor Scrubber, Pre-Filter Included, Reversible Flange 4" x 14"

G-HYDRO 4 Inch Air Carbon Filter with Australia Virgin Activated Charcoal Prefilter Included Odor Control Scrubber for Grow Tent Indoor Plants Inline Fan, Reversible Flange 4 x 14 Inch 210 CFM, Black

iPower GLDUCT4X8C 4 inch 8 feet Non-Insulated Flex Air Aluminum Foil Ducting Dryer Vent Hose for HVAC Ventilation with 2 Clamps

TerraBloom Air Carbon Filter, 4" x 12", Activated Charcoal Scrubber for Inline Duct Fans Up to 200 CFM. for Grow Tent Ventilation Kits, Hydroponics, Odor Removal

VIVOSUN 6 Inch 16 Feet Non-Insulated Flex Air Aluminum Ducting for HVAC Ventilation with 2 Stainless Steel Clamps

iPower GLFILT4M 4 Inch Air Carbon Filter Hydroponics Indoor Plants Grow Tent Odor Control Scrubber with Australia Virgin Charcoal for Inline Fan, Reversible Flange, Prefilter

VIVOSUN 2-Pack 4 Inch 8 Feet Non-Insulated Flex Air Aluminum Ducting for HVAC Ventilation, 4 Clamps Included

AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust

General Hydroponics pH Control Kit

Hydrofarm ACC4 Active Air Stainless Steel, 4" (Pack of 2) Duct Clamps