Recommended for hydraulic brake, fuel and oil lines, refrigerant in engine, air conditioning, marine and mobile applications. Products for use in LP and natural gas applications require special order. An economical and reusable solution that can be field installed. Threads and seats can be assembled and disassembled for long service life. Tighter tube bends can be achieved using a short nut (brass or steel), whereas a long nut is recommended in applications where excessive, high vibration exists.