This compression fitting is easy to use for both contractors and the do-it-yourselfer * Unique Ander-Lign compression fitting is the only fitting that is completely assembled with a captive sleeve * The bodies are interchangeable with standard compression * For use with copper, brass, aluminum, and plastic tubing * Lead-free brass is not more than a weighted average of 0.25% lead when used with respect to the wetted surfaces of pipes and pipe and plumbing fittings and fixtures