The compression tube fitting is made of type 304 stainless steel. It connects tubing to threaded pipe conforming to the National Pipe Thread (NPT) standard in a straight run. This coupling is for a fixed connection between tubing and pipe made of stainless steel.
1/2 Compression Fitting, Stainless Steel 304 Tube Fittings, 1 Pc | Male NPT Coup
1/2 Compression Fitting, Stainless Steel 304 Tube Fittings, 1 Pc | Male NPT Coupler for 1/2 in OD tube compatible with brass, copper and stainless steel tubing for industrial lines. Coupler connects to tubing on one end and has an NPT male thread connector on the other.