Can I mount my 40 inch RO membrane housing vertically?

[svskua]

Hi everyone,
I am in the process of planning and design of an RO unit for my yacht.
As always, space and access is a concern.
I have an area behind a door, which would be perfect for mounting two 40 inch membrane housings vertically.
I also though that this would help to keep air purged, ie, feed at the bottom and exit at the top.
Any help would be gratefully appreciated.
Doug.

[TheOffice]

Rainman says you can with their membrane housing. YMMV

[tkeithlu]

My single 40" membrane is mounted vertically. How you fit everything in is really a matter of where and how far you are willing to run high pressure hoses.