System 1 fuel filters are also the class of the industry. They are available in a half-dozen models to accommodate every application from a high-pressure fuel injection system (mechanical or electric pump) to a standard carbureted setup with lower GPM requirements. Housings are CNC-machined from 6061-T6 billet aluminum and most are available anodized in red or black. Stainless steel mesh elements range from 10 microns to 75 microns, with connectivity ranging from AN-6 to AN-12, plus 3/8” barb.