NOS Nitrous Filter, In-Line -6 AN to -6 AN, 140 Micron Aluminium Blue # NOS15552NOS Nitrous Filter, In Line 6 AN to 6 AN, 140 Micron Aluminium Blue # NOS15552 Nitrous Filter, In Line, 6 AN to 6 AN, 140 Micron, Billet Aluminum, Blue Anodized, Each Filter Fitting Angle: Straight Filter Screens Included: Yes Fitting Attachment 1: Male threads Fitting Size 1: 6 AN Fitting Attachment 2: Male threads Fitting Size 2: 6 AN Nitrous Filter Fitting Material: Billet aluminum Nitrous Filter Fitting Finish: Blue anodized Quantity: Sold