Watermaker Membrane Holder types

[pilott]

I'm finally ready to start building a diy watermaker. Trying to decide between two different styles of membrane housing EWP's Wave Cyber housing, with the "standard" end cap design, or Composite Concepts with longitudinal tie bolts. Can anyone with experience of either brand comment for or against, please

[Cheechako]

Not familiar with those brands. I will say the end caps on mine were black anodized aluminum plugs, with some stainless pieces on them. I think a retainer ring was SS, cant remember for sure. The fittings on the aluminum plug were SS. The corrosion was terrible in that system. You would think some type of hi strength plastic like Delrin or etc would be good for plugs. Plenty of thickness there for pressure. Maybe it's a thread strength issue?

So I guess I would determine what the plugs in various systems are made of.

The Composite Concepts tie rods are a bit complicated comparing, but maybe that eliminates some corrosion risk. I would ask if those end caps are aluminum though.