PPG Herculite K sliding patio door rollers

A home owner from Yukon , OK says:
May 5, 2014
I have a PPG Herculite K sliding patio door installed in @ 1980. The rollers have worn to the point that it is difficult to open the door. Is there replacement rollers for this door. It is a little over 6 foor wide. If so how many are needed to replace all rollers
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Paul from SWISCO responded:
May 6, 2014
Thank you for posting. It's possible you have our 81-018, but I can't be sure. Herculite K is the company that made the glass, not the door. Carefully compare it to your own roller and see what you think.
Sliding Patio Glass Door Tandem Roller
Sliding Patio Glass Door Tandem Roller
81-018
$8.70
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