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Cascade T nozzles are water level dependent. This means these require a constant and stable water level in order to operate effectively. Water level should not be allowed to rise above the top of the nozzle, neither can it be allowed to drop below the air intake component. The image below shows acceptable margins for water level fluctuation with approximate minimum/maximum operating levels. Low water level will result in a cleaner higher jet of water and high water level will produce a lower and wider spray. A water level within the suggested margin will effect the proper cascade effect.

The bases of all Cascade T nozzles feature female threaded inlets for screwing onto fountain pumps or associated pipework. These bases also allow for 360º adjustment, with the head able to be angled up to 5º off vertical. Bolts are used to lock the head in a fixed position once the angle has been set.
| Cascade 50 T | Cascade 70 T | Cascade 90 T | Cascade 110 T | Cascade 130 T |
| Thread | 1” BSP Female | 1 ½” BSP Female | 2” BSP Female | 2 ½” BSP Female | 3” BSP Female |
| Jet Orifice | 54mm Ø | 74mm Ø | 97mm Ø | 117mm Ø | 137mm Ø |
| Dimensions | H192mm x Ø 62mm | H237mm x Ø 98mm | H294mm x Ø 125mm | H348mm x Ø 150mm | H410mm x Ø 176mm |
| Weight | 1.6kg | 2.4kg | 3.6kg | 7.0kg | 11.0kg |
| Drawing | ![]() | ![]() | ![]() | ![]() | ![]() |

We recommend using OASE Aquarius pumps to supply OASE Cascade T fountain nozzles. The pump selected to supply the fountain nozzle ultimately dictates the height of the water jet. The table below identifies the achievable jet heights from each of the Cascade T nozzles, and also identifies which OASE Aquarius pump would be required to achieve the necessary height.
| Aquarius Eco Premium 13500 | Aquarius ECO Expert 22000 | Aquarius ECO Expert 28000 | Aquarius ECO Expert 36000 | Aquarius ECO Expert 44000 | |
50T | 1 Metre High Jet | 2 Metre High Jet | |||
70T | 1 Metre High Jet | 2 Metre High Jet | 2.5 Metre High Jet | 3 Metre High Jet | |
90T | 1.5 Metre High Jet | 2 Metre High Jet | 2.5 Metre High Jet | 3 Metre High Jet | |
110T | 1 Metre High Jet | 1.5 Metre High Jet | 2 Metre High Jet | ||
130T | 1 Metre High Jet | 1.5 Metre High Jet |
Higher fountain jets than those stated can be achieved with all of the Cascade T nozzles. Fountain jets at greater height will require the use of OASE Fountain Technology Commercial Fountain Pumps to overcome greater flow rate and pressure requirements.
Please call or email Water Garden Ltd if you have a specific requirement.