Looking for double 1 1/2 inch rollers for patio glass door

Hello and thank you for writing in. I would start by taking a look at our 81-158 dual roller assembly. Although these are 1-1/4" wheel,s you may be able to adjust it to make up for the difference. You may also want to consider going with the 81-272 wheel kit with 1-1/2" wheels and swap those out for the other rollers. Take a look at each part and let us know what you think.