Brett Martin's rectangular hopper head and grid is a spare part to fit Brett Martin's B1005 back inlet roddable gulley. Hoppers are traditionally designed to increase the flow of a drainpipe when heavy rainfall is occurring.
Brett Martin's rectangular hopper head and grid is a spare part to fit Brett Martin's B1005 back inlet roddable gulley. Hoppers are traditionally designed to increase the flow of a drainpipe when heavy rainfall is occurring.