Impact glass door roller replacement

A quick learner from Port Saint Lucie, FL says:
TRUTH model 31761A roller replacement needed.
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Tom from SWISCO responded:

Hello! Your roller looks like a dead ringer for our 81-018 at first glance. Check it out and let me know if you had any questions.

A quick learner from Port Saint Lucie, FL says:
Yeah, that's the size. Is there any difference in roller strength when it's a heavy impact glass door? The doors are hurricane resistant and extremely heavy.
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Tom from SWISCO responded:

Well, that would depend on exactly how heavy we're talking here. Figure that the 81-018 is rated to individually hold 150 pounds; assuming you have two rollers per door, which is normal, then that's 300 pounds of total support. As long as your door is under that mark then you should be okay.

A quick learner from Port Saint Lucie, FL says:
Good. That should do it. Looks like the 81-149 is the same dimension. Is that model a better option?
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Tom from SWISCO responded:

It's stainless steel, so it would be better if corrosion is a concern. I actually didn't think about that at first, so you have my apologies. If you live in a salt air environment then that would be the better option.

As far as weight capacity goes, the 81-149 and 81-018 actually carry the same load, so you're good to go in that respect regardless of which one you choose.

A quick learner from Port Saint Lucie, FL says:
I'll order the stainless, thanks for all your help.
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Tom from SWISCO responded:

Awesome, thank you very much! Please let me know if you have any other questions.

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