I have a Toro Ultra electric leaf blower with steel mulching blade and need to replace the on/off-speed switch do you guys sell the switch or can you get one?

They can

Call the friendly staff and ask or swing by and ask as this place is always busy but very very friendly.

As far as I know the switch is not available by itself but they fill under warranty they will replace it

C.H. mower represents most major brands including Toro. Shouldn't be a problem getting you the part and fixing it. Call them.