spacer for clear plastic sterling

A quick learner from Keystone shower door replacement part. says:
September 12, 2016
My door originally had the clear plastic sterling, which is no longer made. It didn't have a spacer. The keystone would fit. do I need the spacer with it &, if so, where would I find it?
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Dave Sr. from SWISCO responded:
September 15, 2016
I'm not sure if you would need the spacer, but if you did you could always get some stainless steel washers at a local hardware store in your area. You may be able to install your guide without it, though.
Shower Door Bottom Hook Guide, Pair
Shower Door Bottom Hook Guide, Pair
10-139
$12.30
10-139 Shower Door Bottom Guide Instructions
10-139 Shower Door Bottom Guide Instructions
GUIDE
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