The T-H Marine Oxygenator Livewell Oxygen Generator helps anglers keep bass, walleye, crappie, and baitfish in stronger condition by injecting 100% pure oxygen directly into the livewell or baitwell instead of relying on noisy surface aeration alone. Rated for 10 to 20 gal. livewells, this silent-running unit shows operation through a green LED light and bubbles, draws less than 1 amp on 12V DC power, and automatically activates when the livewell fills with water, making it a smart fit for tournament boats, bait tanks, and warm-weather fish care when every fish in the box matters. The 3 3/8 in. emitter installs easily, includes instructions, and needs to run to its own switch with a 3 amp inline fuse. T-H Marine also notes that this livewell oxygen generator can increase fish survival by over 35% and does not recommend it for saltwater use. Injects 100% pure oxygen into a livewell or baitwell for improved fish care Silent operation uses a green LED light and bubbles to show the unit is running Automatically activates when the livewell fills with water and draws less than 1 amp on 12V DC power Rated for 10 to 20 gals. with a 3 3/8 in. emitter and installation instructions included Manufacturer's three-year warranty Made in the USA