The UnitedBuilt K010091 water cannon kit includes an Elkhart Brass Nitro HD 8100 HD monitor, 7000-EHD electric nozzle rated at 350 GPM at 100 PSI, joystick controller, control module, and connecting harnesses.
Built for water truck dust control, equipment washdown, mining, and construction applications, the system lets the operator aim the cannon and change the nozzle pattern from inside the cab. The included nozzle adjusts electrically from straight stream to wide fog, allowing focused water placement or broader coverage without manually adjusting the nozzle.
Remote control for demanding water truck work
The Nitro HD monitor uses stainless steel thrust rods and needle roller thrust bearings to resist the vibration and side loads encountered in demanding service. Sealed high-torque gearmotors drive horizontal and vertical movement, while the vaned waterway helps reduce turbulence through the monitor.
| Feature |
Practical benefit |
| Joystick control |
Aim up/down and left/right, and select fog or straight stream from the cab. |
| 350 GPM electric nozzle |
Provides a defined flow configuration at 100 PSI nozzle pressure with remote pattern adjustment. |
| Heavy-duty swivel construction |
Supports operation under vibration and side loads in mining and construction service. |
| Matched controls and harnesses |
Connects the monitor, module, and joystick using the Nitro HD system components. |
Technical specifications
| Specification |
Detail |
| UnitedBuilt kit SKU |
K010091 |
| Monitor model |
Elkhart Brass Nitro HD 8100 HD |
| Included nozzle |
7000-EHD, 07000802
|
| Nozzle rated flow |
350 GPM at 100 PSI nozzle inlet pressure |
| Monitor maximum flow |
750 GPM; separate from the included nozzle’s rated flow |
| Monitor maximum operating pressure |
250 PSI |
| Monitor inlet / outlet |
2-1/2″ FNPT / 2-1/2″ Male NHT (NST) |
| Electrical supply |
12 or 24 VDC |
| Travel settings |
Horizontal: 180° or 350°; vertical: 90° or 135°, depending on sensor position |
Actual nozzle flow depends on the pressure available at the nozzle after losses through the supply plumbing and monitor. Select the pump and plumbing for the required operating point; the monitor’s maximum flow and pressure ratings do not mean the supplied nozzle delivers 750 GPM or requires 250 PSI.
Included components
| Component |
Part number / configuration |
| Nitro HD 8100 HD monitor |
00008101 |
| 7000-EHD electric nozzle |
07000802 — 350 GPM at 100 PSI |
| Joystick controller |
41067000 |
| Control module |
81824001 |
| Module-to-monitor harness |
37522000 — 15 ft |
| Module-to-joystick harness |
37523000 — 8 ft |
Water valve, additional plumbing, mounting hardware, and installation supplies are not included. The joystick trigger is a maintained switch for an external valve or auxiliary device. It requires separate wiring and does not shut off water through the nozzle by itself.
Before ordering
| Check |
What to confirm |
| Joystick location |
The joystick is unsealed and intended for in-cab use only. |
| Electrical installation |
Confirm 12/24 VDC supply, appropriate wiring, and circuit protection: 20 A at 12 VDC or 10 A at 24 VDC. |
| Mount and clearance |
Match the 2-1/2″ FNPT inlet and provide clearance for the nozzle and selected travel limits. |
| Harness routing |
Check the included 15 ft and 8 ft harness lengths against your layout. |
| Water control |
Plan a compatible water valve and independent trigger wiring if joystick-controlled water on/off is required. |
| Installation and commissioning |
Follow Elkhart’s mounting and wiring instructions; verify travel stops, hose and wire clearance, and operation before service. |
Need help configuring this water cannon kit? Contact UnitedBuilt through online chat, email parts@unitedbuilt.com, or call 602-253-7750 with your application, electrical supply, and desired nozzle flow.
