The Dual AN-10 Inlet Competition Catch Can gives you maximum filtration with a 100 micron filter disc with its own surge protection mounted to the outlet port. That makes this the first catch can that can be used both for atmospheric and recirculating setup without adding an external filter on top. The unique Internal Billet Filtration Unit in combination with Nuke's recessed filter disc gives you an extremely rigorous filtering of your crankcase gasses. The “IBFU” includes stainless steel filtration media maximizes condensation of the contaminations within the gasses without any or minimum flow loss. The over dimensioned chamber without any additional baffling lets the gasses to flow free within the catch can. Equipped with 100 micron filter disc, prevents particles from escaping the catch can, filter disc is used both when atmospheric and recirculating setup is used. The Competition Catch Can mounts with the included stainless steel bracket which is infinitely rotatable at 360 degrees. It comes with three 7/8 AN10 fittings, one 7/8 plug, one outlet fitting for atmospheric use and 1/4 drainage plug. This is the 0.5 liter version.