These chrome plated push-on brass fittings are the perfect finishing touches for your fuel system, They are made of brass and feature a chrome plated finish for a show car shine., They are precision machined from 6061-T6 billet aluminum for strength and durability, he Holley 12-841 fuel pressure regulator features 3/8" NPT in/out ports and a 3/8 NPT return port, Adjustable from 4.5-9 psi for precise fuel pressure adjustments.
