If your plates are standard 1" plates, they will fit the Troy.
But if your plates aren't rubber-coated, like the Troy, you might want to pick up the Troy plates. They are SOoooo nice! My old, non-rubber-coated plates started to get rust on them (very humid here in summer). Also, Troy at least used to have 1.25# plates, which are nice for microloading (adding weight in small increments to make going up in weight easier), and would be nice to pick up (if they still make them).