Cat Litter (Ottawa,Lowertown,Byward Market)

I am in need of a Box of "Cat Litter",i sure would appreciate the help to get a Box for my "Minoune",who's a great girl when she isn't Moody!Tidy Cat or Arm and Hammer,even FreshPet is good,i'm not difficult,must be clumping and no dust litter is better and healthier for her(She's 17 yrs.old and no slouch!).Thank you for your understanding and positive replies!P.S.I don't own a computer and rely on the library when it's open to answer back soon.Hope you may be able to help me,greatly appreciated!Thank you and have a nice day.Je parle aussi bien le Francais!