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Discover the Innovation of Isotherm Marine Appliances at Fisheries Supply


For decades, Isotherm has been synonymous with reliable, energy-efficient marine refrigeration. Founded in Italy in 1967 and since acquired by Webasto, Isotherm’s reputation is built on delivering premium cooling and freezing solutions designed for the demanding conditions of life at sea. The brand’s products are renowned among professional captains and recreational boaters alike, known for durability, performance, and smart use of onboard energy.
Fisheries Supply offers the most trusted selection of Isotherm marine refrigeration systems and accessories. Our comprehensive inventory is ideal for anyone looking to upgrade their boat’s galley with top-tier marine appliances.

Leading the Way with the Cruise Series and Drawer Fridge Solutions

Isotherm’s Cruise series—including popular sizes like the Cruise 130, Cruise 200, and Cruise 195—sets the standard for marine fridges. These units are engineered for ultra-low power draw, delivering optimal cooling even on longer passages. For modern installations, innovative drawer-style models like the Isotherm Drawer 65 offer seamless integration and exceptional accessibility in tight galley spaces.

Comprehensive Marine Cooling Solutions

Isotherm goes beyond just standalone refrigerators and freezers, offering a full suite of marine-grade cooling options:

Durability and Smart Power Management

Every Isotherm appliance is built with marine challenges in mind. From corrosion-resistant materials to precision engineering that reduces battery consumption, these appliances are made to perform reliably—helping boaters extend cruising time without worrying about power.

Ready to invest in premium cooling for your boat? Browse our extensive range of Isotherm marine fridges, freezers, and galley appliances.

Frequently Asked Questions

What sets Isotherm appliances apart for boaters?

Isotherm refrigeration units and freezers use state-of-the-art compressor systems and robust insulation. Their design focus is on minimal energy usage, making them perfect for boats where every amp-hour matters.

How do Isotherm refrigerators handle tough marine conditions?

Isotherm’s products undergo rigorous marine testing and are constructed to withstand vibration, humidity, salt air, and shifting temperatures—ensuring consistent cooling no matter where you cruise.

Does Isotherm offer modular or space-saving refrigeration for boats?

Yes. The Isotherm product range includes modular units and drawer models, allowing for flexible installation in a variety of hull layouts and galley configurations.

How does the Isotherm SP (Self-Pumping) system work?

The Isotherm SP system uses seawater for direct cooling, expelling heat through the hull via the natural pumping action of the galley sink's drain. This design eliminates the need for additional pumps or cooling fans, resulting in extremely quiet operation.