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3431 Apollo Hi-Riser™ Single Inlet Monitor 1250 GPM
(Includes a single inlet ground base, liftoff,  and a direct mount truck mounting flange)


The Apollo Hi-Riser includes the outstanding features of the standard Apollo along with the added benefit of rising over obstacles on top of the apparatus.

To elevate the Apollo Hi Riser, simply pull a pin and raise the discharge 24” above the deck. 

Also, the Apollo Hi-Riser rotates easily down to a low profile position for portable operation and comes complete with an automatic drain valve. 

Nothing could be simpler... Yet more versatile!

Akron® Apollo Monitors offer a variety of models with features to fit the ever increasing demands of the fire service with a durable, dependable and stable monitor.

Flows up to 1250 gpm in the deck mode and 1000 gpm in the portable mode.
Choice of ground bases: 4”, 4½”, 5” female swivel, 4”or 5” Storz inlet x 2½” threaded male outlet


  • 360° rotation when mounted in the deck mode, 180° in the portable mode

  • Vertical travel from 90° above to 15° below horizontal, with built-in 35° safety stop

  • Full 3" waterway with built-in turning vanes in each elbow for maximum efficiency and lower friction loss – No more than 10 psi at 800 gpm

  • Multiple applications - Use as a Portable Monitor or add the Direct Mount flange for Deck Operation

  • Quality Locking System - Simple, heavy-duty dual lock pins for quicker and easier assembly and more positive locking

  • Direct Mount - A combination 3" NPT Female and 3" Flange allows for easy setup for Deck Operation

  • More water on the fire with a harder-hitting, low fallout straight stream

  • Sturdy ground base helps maintain stability

  • Carbide spikes for extended wear (Spike covers optional)

  • Ground Base folds for easy storage in a standard compartment

Note: Special threads are approximate 8 week lead time and not subject to cancellation or return. Please be certain of your thread type before ordering.

Important Thread Data: Please review this if you are not certain the type of threads your department has.

Additional Ordering Links:

5160 Akromatic 1250 Master Stream Nozzle

1755 TurboMaster Master Stream

2499 Quad Stacked Deluge Tips

3488 Discharge Pipe

3431 Apollo Monitor Product Page

akron brass 3431 apollo hi-riser monitor


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Akron Apollo Hi-Riser Single Inlet Portable and Deck Monitor, Ground Base, and Direct Mount

  • Price based on selected options.

  • Available Options

    Delivery/Shipping Availability: Item ships directly from manufacturer. Approximate delivery in 3-5 weeks.

    WARNING: Cancer and Reproductive Harm:

Tags: Akron, Apollo, Hi-Riser, monitors, Single Inlet Portable and Deck Monitor, Ground Base, Direct Mount, 3431, akron brass