Used in good working condition. The GQF Brooder Replacement Heater model 0575 is a high-quality product made in the United States by GQF. Designed specifically for bird owners and incubator enthusiasts, this heater provides a reliable and efficient way to keep baby birds warm and comfortable. With a focus on durability and performance, this brooder replacement heater is a must-have for anyone looking to successfully raise and care for their birds.