PFMF-0114 | Pro-Flex CSST Male Adapter | 1-1/4" Pipe Size570440592SKU:MF-0114Inventory ID:03612973Select Item:Price: $39.00Quantity: Proflex CSST Gas Pipe Manual 1 1/4" Proflex CSST Male Adapter Has 1" Inside (female) Threads Used to join CSST pipe to female iron pipe. Reviews Choose your rating12345