SYMBOLS USED TO DESCRIBE FITTING END

• C - Copper (cup) manufactured to receive copper tube diameter.
• FTG - Fitting end made to copper tube diameter.
• FIP - Female Iron Pipe Thread (internal) ANSI Stnadard taper pipe thread (NPTI).
• MIP - Male Iron Pipe Thread (external) ANSI Standard taper pipe thread (NPTE).

What you need to know about the new No Lead Law

http://outdoorwoodfurnaceparts.com/Lead_Free.php