Add-on for the K2 Basic and MultiRail System. The RailUp Set allows for an elevation of the modules with minimal material usage, achieving optimal module ventilation on trapezoidal sheet roofs. Additionally, it makes the installation of power optimizers and microinverters more accessible. The set includes screws and nuts necessary for assembly. The RailUp Set is mounted under each module clamp and is compatible with the K2 universal clamp as well as the K2 standard module clamps. It is not compatible with the K2 AddOn. Material: Aluminum, stainless steel, and TPC. RailUp Set.