... : In high quality,superior performance and competitive price 3 pieces connector set :• Features:3,4,7 pieces for tube is fitted to the ... other tubes.have brass sleeve(insert), cutting ring(ferrule), nut,connector. • Materials:Iron,brass. • Fit size:¢5,¢6,¢8,¢10,¢12 ... 6958Tel: +86-575-8761 8856Fax: +86-575-8766 7309Sky.:hong175595 3 pieces connector set