the window is the free space in the baffle as you can see in the below image:
![](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/9192279181/original/sCLwp7JF36otlbvUtT8mafdN70GLtcNa0A.png?1690979415)
"Tubes in window" is how many tubes you have in this space and "Rows in window" is how many rows you have in this space.
Here an example with 3 rows and 16 tubes:
![](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/9192279182/original/7iwETdMpZenrCTh-_AGj5vKfFi2kDhcngA.png?1690979415)
Modified on: Wed, Aug 2, 2023 at 2:30 PM
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