Identification of correct roller ass'y from label

A contractor from Roselle Park, NJ says:
December 9, 2016
Hello,
Please see attached pic. I took the label from the door frame. I need to several of these patio units and would like to know if you can identify and supply the correct bottom roller assembly. I'd be looking to purchase 18 of them. These doors are inside, but have not been serviced in some time (bottom tracks are okay). If you know of any other common wear parts that we should consider replacing, please let me know. Thanks for the help.
Chris
Profile picture of Paul
Paul from SWISCO responded:
December 13, 2016
Thanks for posting. I have received your picture, which indicates that you have a Pennco Series 504 door. These have been known to use our 81-041, but that is no guarantee. The only way to know for sure what to use as a replacement is to remove your current roller from the door and use its physical attributes to find a match.
A contractor from Roselle Park, NJ says:
December 13, 2016
Thank you for the information. I'll pick up a set and try the fitment before placing the full order.
Thank you,
Chris
Sliding Glass Door Roller, 1-1/4" dia Steel Concave BB
Sliding Glass Door Roller, 1-1/4" dia Steel Concave BB
81-041
$11.72
Slider Slicker Track Lubricant
Slider Slicker Track Lubricant
75-077
$3.97
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