Yes. Well nothing is truly salter water "proof" but we use the highest quality snake guides available (from Snake Brand USA), our strippers are Titanium on our larger glass rods (686 and above) - all our Carbon fibre rods have Titanium strippers and black nickel snake guides (about as saltwater proof as is possible)
Our smaller FastGlass trout rods are all fitted with a very high quality hard chrome stripping guide. It is extremely durable.
Our reel seats are all anodised Aluminium alloy - they'll outlast you.
The best thing you can do to keep your fly rod protected against the briny is to clean it thoroughly, immediately after every use.