iPower6" Air Carbon Filter for Inline Duct Fan, Intake and Exhaust Fans, with Premium Australia Virgin Charcoal, Silver

iPower 6" Air Carbon Filter for Inline Duct Fan, Intake and Exhaust Fans, with Premium Australia Virgin Charcoal, Silver

AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 8-Feet Long for Heating Cooling Ventilation and Exhaust

VIVOSUN D4 4 Inch 195 CFM Inline Duct Ventilation Fan HVAC Vent Blower for Hydroponics Grow Tent