iPower GLFANXSETINLINE4D8RH 4 Inch 190 CFM Inline Fan Carbon Filter 8 Feet Ducting Combo with Humidity Monitor Grow Tent Ventilation, Grey Physan 20 Note: model numbers identify the

Note: model numbers identify the approximate cubic feet

They also allow excess air pressure from the pump to escape to decrease pressure on the diaphragm of your pump

Transplant plugs in soil or soilless hydrogardening applications

Recyclable and Eco-Friendly

iPower GLFANXSETINLINE4D8RH 4 Inch 190 CFM Inline Fan Carbon Filter 8 Feet Ducting Combo with Humidity Monitor Grow Tent Ventilation, Grey Physan 20 Note: model numbers identify the4 Inch 190 CFM Duct Inline Fan Blower: Made with quality components for quiet operation. Composite fan blades and center hub which reduces noise and vibration. Free pair of 8 ft adjustable Ratchet Clip Hanger Rope: hold up to 150 lbs. 4 Inch 1050+ IAV Australia Charcoal Filter: One of the world's most absorbent carbon available; Dimensions: 4" Flange Ducting x 12" Length; Reversible flange; FREE Pre Filter included: We recommend replace the Pre Filter