SurplusHydro specializes in providing hydroponic systems and components. We offer fans blowers fluorescent lighting indoor greenhouses lighting accessories water filtration and air & water pumps. Active air in-line duct fans feature durable ceramic-coated metal housing molded impeller thermally protected AC motor mounting brackets and includes 8 foot pre-wired 120v cord. The flanges & end-caps are made from galvanized steel and are designed to be press-fitted into the PROfilters. No tools are required to install the flange and end-cap to the filter. The 6" Air King clip-on fan features a convenient and easy to use spring loaded clip making the fan versatile for multiple uses. 12 outlet copper air divider can be individually opened or shut for total aeration control.