Drainage

I was just wondering what and where I can get a drainage connection that I can put on the bottom of a ebb and flow. It has to connect to a 1/2 inch tubing. I know homedepot probly sells them but what should I get. Thanks

Has anyone seen the I grow green video, im talking about a drain connection that looks like the ones he uses

Get all my stuff off e-bay have for years

ok... What should i look for on ebay? What do I type in