PHOTOS BY EMS 12 (PAT SHOOP)

[fyrfoto]

Large foam concentrate loading/unloading device; just a guess.

If you are talking about this silver curved pipe that is mounted at the top of the hose bed and dangles down in front of the compartments it appears to be an old applicator nozzle (I have also heard these called chimney nozzles and even once called a cellar nozzle-although this certainly would not be as effective as an old distributor nozzle.) They typically direct a low volume fog spray into hard to reach places. you can see the nozzle handle toward the rear of the truck.