Vault vs Vortex Hubs

I'm getting ready to replace the hubs on my trailer. The trailer see's mostly freshwater but occasionally see's saltwater. What are y'all's opinions on these two hubs?

vault seems to be better because they are truly sealed the vortex have plastic caps that are not as strudy as vault ones are.

Same technology.

If your trailer has Vault axles with the replaceable swingarm spindle/hub assemby replace that whole unit.

If not then Vortex is your only option anyway.