Two Seas Universal RV Flush Rail Mount Strong - Constructed from 5052-H32 aluminum with stainless steel fasteners, your modules are protected from damage in virtually all weather conditions, including extremes of wind, rain, ice, and snow. Using licensed engineers and destructive testing methods, these structures have been designed and proven to withstand 50 psf (125 mph wind loads) - significantly higher than industry standards. Durable - Using punch/form construction methods, rather than extrusions, allows for the use of high tensile strength, and corrosion resistant materials. Zinc-plated (galvanized) steel is used for pole brackets and mounting feet. The structures will last the life of the PV modules they support, and beyond. Versatile - Two Seas structures are universal, designed to hold modules from the major manufacturers. Different models are available to mount from one to twenty modules. All modules are infinitely adjustable over a wide range for precise positioning of the modules. Season adjustments can be done easily by one person. Attractive - Available in brushed aluminum or optional powder coat (not painted) finish, the mounting structures compliment your installation with their attractive appearance. Easily Assembled - Using CNC (Computer Numerically Controlled) manufacturing methods assures precise hole location and alignment of each component. Conveniently packaged and labeled sub-assemblies, along with well-illustrated instructions make assembly rapid and straightforward