The BestAir Golden Solution # 246 64 oz Humidifier Water Treatment comes in a pack of 4, making it a convenient and high-quality option for maintaining optimal indoor air quality. This liquid humidifier solution by BestAir Pro is designed to freshen the scent of your home while effectively treating your humidifier. With its white color and fresh scent, this product is not only practical but also pleasant to use. Made in the United States, this solution has a capacity of 64 oz per bottle, providing long-lasting and efficient performance for your humidifier.