The Copeland RST64C1E-CAV-901 Welded Comp EMT R404A/HT R407C 208/230-1 Sweat Conn Repl RS64C2E-CAV-908 is a welded comp EMT R404A/HT R407C 208/230-1 sweat conn replacement part that is designed to meet or exceed the original equipment specifications. This part is made from high quality materials and is designed to last. The Copeland RST64C1E-CAV-901 Welded Comp EMT R404A/HT R407C 208/230-1 Sweat Conn Repl RS64C2E-CAV-908 is a welded comp EMT R404A/HT R407C 208/230-1 sweat conn replacement part that is designed to meet or exceed the original equipment specifications. This part is made from high quality materials and is designed to last.