Aeromotive' line of custom fittings, hose-ends and adapters are a step above the norm, offering uncompromised fuel flow and positive sealing. Constructed of the finest aluminum and stainless steel materials, each component is CNC machined for fitment and flow, and then coated for corrosion protection. Hook-up with Aeromotive for maximum fuel system performance. All Aeromotive fittings and adapters are fully compatible with gasoline and alcohol based fuels. PartNumber : aer15662 Description : 1/16in NPT Breather 17 : yellow Thread Diameter : 1/16" NPT Title : Breather, 1/16th-NPT Color : yellow California Proposition 65 : WARNING: Cancer and Reproductive Harm ; www.p65warnings.ca.gov Thread Diameter : 1/16'' NPT Fabrication::Fittings