Bubble magus z-series

[saltgogi]

I recently bought a bubble magus z-6 from @Bulk Reef Supply and found that there is a co2 recirculating skimmer attachment for the z-7 and z-8. Does anyone know if the z-7/z-8 lid is the same size as the z-6 lid? I have a feeling the z-6 lid is smaller but not sure as I can’t find any info on the collection cup online.

 

[saltgogi]

The z-6 lid measures approximately 4.75 x 3” length and width

 

[RI Aquarium]

I have the same question. Thanks!