Lenny, the couple inches difference between the low and the comfort johns really makes a difference. I sat on the different units and the higher comfort unit really was easy compared to the lower ones. I have been in places where the floor area under the john has been built up to allow the top to exceed 20 inches high to make it easier for getting on and back up. My standard chairs are 17 inches high, so it equals those in height. ....................bob
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