The Seahorse "Mariner Series" Marine Sanitation Device is a self-contained biological treatment system that is sized to fit almost any application.


The Seahorse MSD’s can meet any crew requirements for USCG, IMO, International, Local and State regulations. Units can also be custom designed to fit in many tight spaces.


The Mariner Series comes complete with NEMA 4 waterproof enclosures with high level alarm, and discharge pump.


Seahorse also provides a complete line of products to help you maintain your system properly.

Download PDF Flyer on these products


Marine Application Flyer

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USCG /IMO Certified Type II MSD
Low Maintenance - few moving parts and no special tools required
Crew sizes from 1 to 450+
Certified to treat up 8500 GPD per single system
Meets or exceeds all EPA, State or International requirements.
Standard Configurations and customs designs
Operates in Fresh and Saltwater
Carbon Steel, Stainless Steel, and
Aluminum Construction
Standard carbon steel unit