PFUF-3406 | Pro-Flex CSST Union Fitting | 3/4" Pipe Size570438420SKU:UF-3406Inventory ID:3612416Select Item:Price: $20.62Quantity: Proflex CSST Gas Pipe Manual 3/4" Proflex CSST Union Fitting Used to join CSST pipe to same size CSST pipe. Reviews Choose your rating12345