The 2202212421 oil fill plug fits on a wide variety of Chicago Pneumatic and Atlas Copco air compressors. This part is removed when filling the separator tank with oil.
The part number may be displayed in your manual as 2202212421, 2202-2124-21 or 2202 2124 21.
Part #: 2203 0387 00
Part #: 2204135111
Part #: 1630144405
Part #: 1089949693