ID window guides

A quick learner says:
I need resolve in properly idenifying these guides to match the purchased channels
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A home owner from Orlando says:
Please assist in identifing these channel guide cams These will match up with purchased 29 " Series 351 Channel Balance Option 2830 Use photos above
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Paul from SWISCO responded:

I believe our 18-127 top sash guide will do the trick for you. Confirm your measurements and match up to ours. Are they compatible with one another? Let us know.

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