Aeroquip reusable hose ends are easier to install than cutter-style fittings and are more user-friendly. With their compression-style design, they can be reused without damaging the fitting, and the nipple pilot prevents damage to the inner tube. Made from alum. to keep your hot rod lightweight and anodized for corrosion protection. Their one-piece design allows for improved flow and eliminates two potential leak points (brazed joints). Fitting is new in Aeroquip packaging and came in on a parts trade so someone can save a few bucks and get a new part.