You can form a permanent, leaktight connection that resists corrosion and scaling with this NIBCO reducer. Fitting is 99.9% pure copper material and seamless tubing construction. This wrot copper fitting is ideal for drinking water, air conditioning, and refrigeration applications in residential and commercial systems.

Reducer, Application Air, Gases, Potable Water, Fitting Side A Connection Type FTG, Fitting Side B Connection Type Cup, Fitting Side A Copper Tube Size 4 in, Fitting Side B Copper Tube Size 3 in, Fitting Material Wrot Copper, Fitting Side A Tube Outer Diameter 4 1/8 in, Fitting Side B Tube Outer Diameter 3 1/8 in, Maximum Operating Pressure 293 psi @ 100 Degrees F, Maximum Operating Temperature 400 Degrees F, Specific Fitting Shape Straight Reducing Coupling