Originally Posted by Senior Shrimpo
Inflow 13 mm
Outflow 10 mm
Next time just use the 'search' function, people ask this a lot.
As for types, try Cal aqua, do aqua, ADA, nag aqua... Or eBay brand.
Lets remember the point of the forum is to ask questions and discuss things...
As far as your recommended sizes I would worry about the size difference being an issue and try and use sizes as close as possible to the tubing.