Surface air diving systems (Oilless) must have proper filtration going to the diver below. This 10 Micron filter by Gator Gill LLC provides the minium needed to safely dive using your Oilless Compressor. Combined with an additional in-line filter (sold seperately) you will be able to dive for longer periods of time with the peace of mind the majority of air contaminates are being removed. Check out our other more advanced filters and accessories here by clicking on Sellers other items. We are your one stop shop for all Hookah air diving needs.