Aeromotive 12303 In-Line Filter (40-Micron Fabric Element) 40-micron fabric replaceable element. 3/8 NPT ports. Red, type II bright dip anodized finish. Compact size: 3.5 long x 1.25 diameter. Ideal for use with the Aeromotive Inline EFI Fuel Pump, P/N 11109. Made in USA