I honestly don't know if it is necessary but I only use Blue Stripe 1/4" hosing for my tubing if I'm not using the MistKing tubing. It is a little more expensive than the standard cheap tubing at Home Depot but the PSI rating on the tubing exceeds the rating of the pump.
Those pumps can produce a lot of pressure (125 psi) and most of the cheap tubing is only rated for about half that pressure so I worry about the lines failing when I'm not around and flooding the floor. Could just be me worrying more than I need to but better safe than sorry imo.
http://www.homedepot.com/p/Toro-Blu...-with-Emitters-53640/100003898#specifications