Dresser 401 style Copper to plastic natural gas compression Fitting reducer coupling.  New in original bag packaging. Pictures are representative as I have several available. One bag was opened to take the pictures of the item shown.
Dresser 1-1/8” polyethylene gas pipe compression coupling to 1.375” Copper.
Has steel inserts
-20F / +100F MAOP: 125G
1.375 CPLG RDCR X 1-1/8
Copper to PE(.090W)
1.375 Cplg Rdcr x 1 1-8 1.125”
0401-0000-090P