As Sara said. Norco should have a solution for you.
Norco definitely had them...they specialize and can advise/assist you
I'm not sure what kind of durable medical supplies Fred Meyer carries, but I do know Norco and Walmart carry the toilet risers. I use one myself; may I suggest that you get the kind that bolts on to the toilet bowl and has hand rails?
Go to Norco, off of Northside near the interstate
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