In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
why these two adpaters' price difference is so big?
[u][color=#0066cc]1/2 in. Copper FTG x MIPT Fitting Adapter[/color][/u] (http://www.homedepot.com/p/NIBCO-1-2-in-Copper-FTG-x-MIPT-Fitting-Adapter-C6042HD12/204620308) is $5.97
[u][color=#0066cc]1/2 in. Copper Pressure C x MIP Adapter[/color][/u] (http://www.homedepot.com/p/Mueller-Streamline-1-2-in-Copper-Pressure-C-x-MIP-Adapter-W-01131H/100165238) is only $1.58
which one I should use with this elbow: [u][color=#0066cc]Lead-Free 1/2 in. Copper Silicon Alloy Pressure 90-Degree C x F Elbow[/color][/u] (http://www.homedepot.com/p/NIBCO-Lead-Free-1-2-in-Copper-Silicon-Alloy-Pressure-90-Degree-C-x-F-Elbow-C707-3-LF/202029369) ?