What factors matter most when selecting an industrial cartridge filter housing?

I've been reviewing different cartridge filtration systems recently and found that many housing selection guides focus only on micron rating.

In practice, housing selection seems to depend on several factors:

• Required flow rate
• Number of cartridges
• Operating pressure
• Temperature
• Housing material (304 vs 316L)

For engineers working with water treatment or chemical processing systems:

Which factor has caused the most problems in your projects?

I put together a summary of common housing types and selection considerations while researching the topic. If you are interested, you can search the title: Industrial Cartridge Filter Housing Guide.

Interested to hear real-world experiences.