3/8 inch Line Splice For Dorman 800-641 Aluminum Lines For Chevy Suburban For GMC AC Repair Tools Size: TB-Line-0641 Fits: for Dorman 800-641. Package includes: 1* Aluminum Alloy Silver Tube, 2* Aluminum Alloy Red Joint, 2* Fluororubber Green Gasket, 2* Copper Gasket. Repair steps: Cut the line, install the fitting, vacuum & refill the system. Mineral oil is recommended; it helps create the seal between the pipe & rubber gasket. Specifications: Line splice for A/C lines, compensates for out-of-bounds or scratched tubing. Durability: The A/C kit is constructed of aluminum and rubber, offering high-temperature resistance and corrosion resistance ⚠️ To ensure a perfect fit, please double-check the model with our team prior to purchase — we’re here to help.