sliding door rollers

A quick learner says:
Is part number 81-151 (Tandem Patio Door Roller, Flat Nylon) the Nylon equivalent of 81-149 (Stainless Steel Sliding Glass Door Tandem Roller)?
Profile picture of Donna
Donna from SWISCO responded:
No, SWISCO product code 81-151 has two flat edged wheels and the 81-149 rollers has concave wheels.
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 4-7 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at 856-317-6263 or at