Akron Brass Apollo Hi-Riser [3433] Dual-Inlet Portable and Deck Monitor. The Apollo Hi-Riser includes the outstanding features of the standard Apollo™ Single and Apollo™ Dual with the added benefit of height. In deck mount mode, the Hi-Riser™ can rise above light bars and other obstructions on top of the apparatus, eliminating the need for extra deck mount extension devices of telescoping pipes. Simply pull a pin to elevate the nozzle 24'' above the deck. A one-step disconnect easily takes the Apollo Hi-Riser from deck to portable operation. In portable mode, the sturdy ground base helps maintain stability throughout the entire operating range up to 800 gpm.