fischer connectors PFFF are suitable for the construction of simple channel systems. The connectors are offered as flat connectors with two formed holes or longitudinal connectors with four formed holes for connecting the fischer mounting channel FUS with the fischer push-through connector PFCN. The flat connectors can be used to save space when constructing channel connections. The galvanised zinc design is suitable for installations in buildings, the hot-dip galvanised or zinc flake surface coating and stainless steel designs are suitable for installations outside and in highly corrosive environments.