The Helios MV 100 B is a RADAX MixFlowVent in-line fan engineered for efficient, space-saving installation within duct systems. It features a rotatable mixed flow impeller optimized to deliver high volume flow and pressure. The casing is constructed from impact-resistant, corrosion-proof polymer in light grey, incorporating an integrated mounting frame for easy attachment to walls or ceilings. Connection spigots are compatible with all standard duct sizes. By loosening the clips, the fan unit and terminal box can be rotated to any position or fully removed for servicing and cleaning.