Rockford Fosgate

About Yara North America & Odorlos

Yara North America is the U.S. division of Yara International ASA, a global leader in chemical and environmental solutions with operations in more than 60 countries. While the parent organization is best known for agricultural and industrial innovations, Yara North America also brings that same science-driven philosophy to the recreational vehicle and boating world through its Odorlos brand of holding tank treatments.

Odorlos has been a trusted name among RV enthusiasts and boaters since 1996. The brand draws on Yara's deep expertise in hydrogen sulfide odor control — developed originally in Scandinavia for municipal wastewater treatment — and applies it to the unique challenges of black-water and gray-water management in recreational vessels and motorhomes. The result is a product line that genuinely eliminates odors at the source rather than simply masking them with synthetic fragrances.

What Makes Odorlos Different

The core Odorlos formula is scent-free, non-toxic, and 100% biodegradable. It contains no formaldehyde and is safe for chemically sensitive individuals, accepted at all campgrounds, and compatible with residential septic systems. Just four ounces of liquid treatment is enough to treat a standard 40-gallon holding tank — breaking down waste and tissue, lubricating dump valves, and preventing the kind of clogs that can ruin a trip. The formula is available in multiple convenient formats, including liquid bottles with built-in measuring systems and pre-measured dry pouches and drop-in packets, making it easy to use whether you are aboard a houseboat, a cruiser, or a Class A motorcoach.

Odorlos products are distributed nationwide through major RV and marine retailers, making them one of the most accessible and widely recognized holding tank treatment brands in North America. Whether you spend your weekends on the water or on the open road, Odorlos is engineered to keep your onboard sanitation system clean, functional, and odor-free from launch to layup.

Odorlos in the Marine Environment

Boaters have a particular appreciation for what Odorlos delivers. Marine holding tanks operate in a warm, enclosed environment — conditions that accelerate odor-causing bacterial activity. Odorlos works with natural biological processes to neutralize those odors before they can permeate a cabin or cockpit. Its scent-free approach means you won't trade one unpleasant smell for an overpowering artificial one. From houseboats and pontoons to offshore sportfishers, Odorlos has earned a loyal following among serious mariners who demand consistent, reliable results season after season.

Explore the full Odorlos lineup available here to find the right format and size for your vessel or RV, and keep your holding tank system performing at its best all season long.