We at Ekstensive have been using Hardline on our builds since 1997 and completely trust its reliability and resistance to heat and abrasion. This 3/8″ airline has been tested and trusted to protect your investment for years to come! Reviews There are no reviews yet. Be the first to review “3/8 Aluminum Airline – 50FT” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.