Von Duprin Exit Devices (33A/35A, 98/99, etc) are handled on a case by case basis regarding their ability to handle salt and chemical environments.
Our powder coated finishes US28 (Anodized Alum...
The difference between the L and N escutcheons is the size and how they are manufactured.
L Escutcheon: 8" x 1 3/4" x 7/16" (203mm x 44mm x 11mm) Cold-forged brass, bronze or stainless steel ...