I'm running about 50' of 1" CSST natural gas tubing and want the best flow possible before I branch out and step down. I see there are two choices for connections;
1" MIP (3/4" FIP) x 1" CSST
1" FIP x 1" CSST
If I select the first fitting, am I effectively reducing my entire 1" tubing run to 3/4" since it can fit 3/4" MIP threads even if I used the 1" MIP side of the fitting?
Saying it another way, does fitting number two have a better throughput than the first regardless of how I connect the first?