squeeze on the heater hoses and see if they're very hard. if u have to use a lot of force to squeeze it, then u are better off changing it.

if its just hard, like u can't squeeze it by pushing ur finger in it, then its fine.

and get the nice quality ones, like Goodyear or something expensive from autozone, (if u can, get em from Honda) dont buy cheap shit. it'll go bad fast.