... quality,superior performance and competitive price Insert,Three pieces fitting,Cutting ring : • Features:3,7 pieces for tube is fitted to ... the nylon hose and other tubes.have brass sleeve(insert), cutting ring(ferrule), nut,connector. • Materials:Iron,brass. •Fit size:¢5 ... ,¢6,¢8,¢10,¢12,¢14,¢15,¢16 nylon tube and others. • Applications:Auto parts ...