Size of oil drain tube for Craftsman YTS 3000 B&S Riding Mower

[NickSteel]

Misplaced the tube you connect to drain the engine oil. Does anyone know what size tubing I need to replace it?

 

[mechanic mark]

Oil drain tube | 148456 | SearsPartsDirect scroll down left side for specifications.

 

[NickSteel]

Thanks. It looks like 1/2". I'll pick up a piece from Lowes.