The Flow-Rite Pro-Fill RV-2000 On Board Dual 6v Battery Watering System is a high-quality product designed for RV enthusiasts. Made in the United States by Flow-Rite, this system ensures that your dual 6v batteries are properly watered, maintaining their performance and longevity. Perfect for those looking to keep their RV's batteries in top condition while on the road, this on-board watering system is a reliable and efficient solution for any camping trip.