Hydroponic Grow Fan Tent In line Complete Carbon Filter Duct Kit 4" 5" 6. SMF Standard Model with Plug. Kit Comes with the following. 4" 5" 6 Fan with Plug. Standard Model Comes with plug how ever this does not need to be used if not needed.SMF fans are applied for supply and exhaust ventilation systems of commercial, office, tents, carbon filters and other premises etc. Compatible with Ø 100, 125, 150mm round air ducts. Due to the corrosion-resistant durable plastic casing, these models are the perfect solution for the installation in exhaust ventilation systems in humid premises such as bathrooms, kitchens etc. The item "Hydroponic Grow Fan Tent In line Complete Carbon Filter Duct Kit 4 5 6" is in sale since Thursday, September 18, 2014. This item is in the category "Garden & Patio\Hydroponics\Hydroponic Systems, Parts & Accessories\Hydroponic Systems". The seller is "hydroponics4less" and is located in Solihull. This item can be shipped worldwide.