Oticon miniFit ProWax Hearing Aid Wax Guards Filters Compatible hearing aids for the Oticon miniFit ProWax wax guards: Current/Recent Models (miniRITE platform): Oticon Real miniRITE, More, Play, Zircon, Cros, Opn S, Opn Play, Opn, Ruby, Siya, Jet, and Oticon OWN (CIC, ITC, ITE, IIC) models 1-5.