Oil pan drain plug... what size?

[Simon Montagu <simon.montagu@domain.elided>]

Before I make another trip to exchange sockets, can someone *please* 
tell me what size sockets I need for the oil pan drain plug (24 mm?) 
and the bolt on the oil filter canister (19 mm?) for a 1971 Spider. 
I've got a different answer from everyone I've asked so far, and my 
guesses have been way off base.

Email me directly. Thanks in advance.

Simon.

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