Orthos Liquid Systems

Resilient – Reliable – Sustainable – Permanent

Leading the Way for Nozzle-Based

Filtration Products and Systems

We realize that the key to our continued longevity is to have sound, strong, and enduring partnerships with both our current and future customers. You can always count on us for quality, design innovation, and technical support.

We are a Team of Industry Experts

Providing quality equipment along with excellent customer service has been the mantra at Orthos for over 40 years now.


Specializing in

Water & Wastewater Media Filtration

Since 1978

Since our inception as a small family-based distribution company of European products to our current status as an industry leader in the water and wastewater filtration business, this mantra has not changed.

Filter Retrofit

Proven Quality

With thousands of North American installations and millions of nozzles sold to date, Orthos delivers unparalleled quality and system longevity.

Filter Installs

Schlick®  Atomizing Technologies

Orthos is also the North American master licensee for Schlick® atomizing and spray nozzles for pharmaceutical and other precision application industries.

Schlick Nozzles
25 Years Seal


In 25 years and with over 200 filter installations, ORTHOS has NEVER had an underdrain failure.

Plant of the Year


Nozzles installed on 6” centers provide uniform air/water distribution during backwash and repeatable, effective cleaning with no dead spaces.  Low water and energy usage are imparted by long filter runs and reduced operational costs.

Nino Nozzle


The Centurion delivers HUGE life cycle cost benefits: At the end of a filter system’s replacement cycle, (e.g., 25 years), the ORTHOS nozzles are simply replaced, potentially saving millions of dollars

Orthos Nozzle Install


Upon construction, our monolithic, reinforced-concrete underdrain becomes part of the filter civil works, likely lasting a century.

Providing Quality Equipment Along With Excellent Customer Service

For over 40 years, Orthos Liquid Systems, Inc., has strived to provide its customers with excellent customer service while supplying quality equipment. While enjoying continued growth through the decades, today we proudly serve clients throughout North, South, and Central America. Such success has earned us a reputation for honesty, reliability, product knowledge, and excellent customer service.

NSF Approved
ISO 9001

Resilient – Reliable – Sustainable – Permanent 

Get In Touch With Orthos

Let Orthos Liquid Systems, Inc. give you instant access to the broadest line of filter nozzles/strainers, slot sizes, air scour tubes, and flow characteristics available – plus adapters and accessories.

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