BestAir 1T-6 Humiditreat Extra Strength Humidifier Water Treatment 32 oz. (4 Pack)

Made in the USA | Humidifier Water Treatment (32 oz.) | Prevents lime scale build-up on tank and filter while keeping your water clean and fresh | Helps control odor and ensure long, efficient, trouble-free performance from your humidifier | Not for use in ultrasonic or vaporizer type humidifiers