As with all other steel systems, this is a cut-out type running outlet. This is a very simple process carried out with a standard hacksaw, for further details please download our fixing instructions.Offset bends connect directly onto the bottom of the outlet. Where the pipe drops vertically straight down (ie. no offset bends are required) a pipe connector is required to connect the downpipe onto the outlet.The 135mm and 100mm Running Outlets connect to our 87mm Pipe. 150mm Outlets connect to 100mm pipe.