Built for commercial pools, the Paragon custom railings are stainless steel and corrosion resistant, per maker. Pentair recommends the railings for entry, stairs, and ADA compliance. Part of the Paragon line includes the ability to custom fabricate them to fit architectural design needs. Sizes include 1.9-inch outside diameter and 1.5-inch OD. Contact: 800.831.7133; pentaircommercial.com