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First Defense® High Capacity

NJDEP Authorizes use of First Defense® High Capacity with Highest Stormwater Treatment Loading Rate in Industry

NEW - Hydro DryScreen

Introducing the Hydro DryScreen™ Next Generation Baffle Box - a versatile screen and sediment-removing device designed f

NEW Sizing Calculator!

Engineers and Design Consultants - find the best Stormwater Separator size for your site.

HeadCell / SlurryCup / Grit Snail

The industry leading, high performance grit removal system.

Hydro-Sludge™ Screen

A horizontal in-line coarse material separator comprising an inlet screening zone and a pressing zone.

An Innovative Flood Control Solution

Hydro International Vortex Flow Controls. Part of Glasgow City’s Council’s $84 million flood prevention plan.

Welcome to Hydro International

Hydro International offers innovative products for the cost-effective treatment and control of water, wastewater, and stormwater.

Hydro's products use state of the art design to provide optimized solutions for wastewater treatment plants, combined sewer systems, and municipal separate storm sewer systems (MS4s). Hydro products are also well suited for many types of industrial, drinking water, and agricultural applications. Hydro products improve the performance of water and wastewater treatment facilities, control flow quantity, and improve the quality of water.

Through the application of advanced vortex and complementary technologies Hydro International’s line of products provide economical solutions to the challenging problems our clients face.

HX is the essence of Hydro. It’s interwoven into every strand of Hydro’s story, from our products to our people, our engineering pedigree to our approach to business and problem-solving. HX is a stamp of quality and a mark of our commitment to optimum process performance. A Hydro solution is tried, tested and proven.

There is no equivalent to Hydro HX.

Find out more about Hydro HX.

Latest News

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The First Defense® High Capacity, an advanced hydrodynamic separator for stormwater treatment from Hydro International has now been certified for 50% Total Suspended Solids (TSS) removal by the New Jersey Department of Environmental Protection (NJDEP) – at the highest treatment loading rate in the industry.

Latest Events

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Hilton Garden Inn, Louisville, KY. Visit Hydro International's booth at the KSA 2016 Annual Conference.
La Crosse Center, 300 Harborview Plaza, La Crosse, WI 54601. Hydro International is exhibiting its stormwater products at the 2016 bi-annual conference.