Many of the rod makers make a fresh and saltwater series of the same rod. Sure, handles are often different for the same base rod and stainless or other corrosion resistant guides, reel seats, etc. are used on the saltwater series...which typically increases price a little. I bought a St. Croix Legend Elite ESW 906-4 last spring and really like it...so much so, I just bought the 908-4. Sure, freshwater rods work fine for salt but are at more risk for corrosion if not gushed clean soon after use. I'm really beginning to wonder why I didn't just buy more saltwater series rods to begin with and use them for both fresh and salt? Anyone else using salty's for their river and lake fishing?