Amflo 1/4" I/M Design x 1/4" FNPT Steel Plug Adapter

Amflo CP20 (stamped CP21) -1/4" I/M Design x 1/4" FNPT Steel Plug. Amflo 1/4" I/M Design x 1/4" FNPT Steel Plug. CP21 is stamped on the Adapter, however, when looking it up on the Amflo Manufacturer's website it matches the CP20 more correctly.