Size of plug at the bottom of the catch can

[TORQUERULES]

My wife got me one of your catch can kits for Christmas. I want to put a drain petcock in the bottom of the can. What size is the plug in the bottom of the can (I haven't gotten the kit in my hands yet, have to wait until Christmas LOL)? Is it 3/8" pipe or 1/2" pipe? Thanks.

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[JoeDirt]

It's 3/8" npt. Mishimoto sells a drain kit.

https://www.mishimoto.com/compact-baffled-oil-catch-can-petcock-drain-kit.html#prettyPhoto