Parker A-Lok 8FF8-ZY Nylon Compression Tube Fitting, Front Ferrule, 1/2" Tube OD Front ferrule of a ferrule set for providing a seal when compressed between two mating components Connects to tubing Nylon for strength, flexibility, and resistance to abrasion, crushing, and cracking Twin ferrule compression fitting for a leak-resistant seal in high-pressure applications For use with Parker A-Lok BF-ZY series back ferrule (sold separately)