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Hydro International offers innovative products for the cost-effective control of stormwater. Phoenix Precast manufactures and distributes the complete line of Hydro International’s stormwater management portfolio.

First Defense®

First Defense® is designed for the removal of sediment, floatables and associated pollutants from stormwater run-off whilst also functioning as an effective catch basin.


The Up-Flo™ Filter is a high rate, modular stormwater filter system that combines a patented upward flow path with a unique drain down design. It is designed specifically for removing a wide range of pollutants, including floatable debris, fine sediments, nutrients, metals, oils/grease, and organics/bacteria from stormwater. The Up-Flo™ Filter has the ability to distribute flows evenly across the media within the filter modules to ensure maximum treatment capacity.

Downstream Defender®

The Downstream Defender® is an advanced hydrodynamic vortex separator for the removal of sediment, oil and floatables from stormwater runoff. The Downstream Defender® is proven to be more efficient than other structural treatment devices: it uses only 50% of the footprint of conventional structures and is the only device that has internal components proven to prevent pollutant re-entrainment (or washout).

Hydro-Brake Optimum®

Hydro-Brake Optimum® is used to control the flow of water to prevent upstream and downstream flooding. It dispenses with the need to choose from a range of sizes and types and instead offers engineers the flexibility to size each unit for absolute fit and performance. Unlike other vortex flow controls, the Hydro-Brake Optimum® adds a new level of customization; the inlet, the volute and the outlet are all independently configurable.

Downstream Defender

4ft Downstream DefenderPDF
6ft Downstream DefenderPDF
8ft Downstream DefenderPDF
10ft Downstream DefenderPDF
12ft Downstream DefenderPDF
Downstream Defender BrochurePDF

First Defense

4ft First Defense UnitPDF
6ft First Defense UnitPDF
First Defense BrochurePDF


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