The product is compression fitting, Brass, male connector, 3/16 inch compression tube x 1/4 inch male thread. It features all Brass construction, economical, long nut for vibration and UL listed for Flammable liquid. All brass construction Feature: economical Long nut for vibration Ul listed for flammable liquid Acetyl sleeve for use with thermoplastic tubing Color Brass Brand Name Parker Hannifin Unit Count 20.0 Count Manufacturer Parker Hannifin Corporation Model Number 68C-3-4-pk20 Material Type Brass Exterior Finish Brass Number of Pieces 20