Home Infrastructure Environmental Sanitation Rectangular section collector duct Rectangular section collector duct Description Save Rain channel to vent large amounts of water Format DWG File size 1.91 MB DOWNLOAD DWG share your appreciation Related Posts Sewerage and latrine sanitation system – Agua Santa Chumuch Arica Tacna Street Drain Collector san antonio canal design Sanitary sewer thickener tank Pozos ho pipe mass Residual water treatment plant typical sewer Sanitary sewer. general plane sanitary sub-collector Storm drainage network. Details of record boxes and mailboxes Manholes for storm drain pipes Wastewater plant oxidation ponds Septic tank Port Sewerage condominium inspection box Sewage drive plant