page_title: Deluge gun
hierarchical_section_title: Deluge gun
caption_attribution_description: English: Portland Engine 11 directs water through a window opening while South Portland Truck 2's ladder is visible in the background operating its master stream.
context_page_description: A deluge gun, fire monitor, master stream or deck gun is an aimable controllable high-capacity water jet used for manual firefighting or automatic fire protection systems. Deluge guns are often designed to accommodate foam which has been injected in the upstream piping.
context_section_description: A deluge gun, fire monitor, master stream or deck gun is an aimable controllable high-capacity water jet used for manual firefighting or automatic fire protection systems. Deluge guns are often designed to accommodate foam which has been injected in the upstream piping.
caption: A deck gun in the foreground puts water through a window while a ladder-mounted master stream in the background directs water through the collapsed roof.
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