PureGuardian Aquastick, Universal, Genuine Guardian Technologies Antimicrobial Humidifier Treatment, Ultrasonic & Evaporative, Fits All Brands, Reduces Odors, 4 Count (Two Packs of Two), GGHS152PK

Comes with two 2-packs, a total of 4 sticks. The AquaStick humidifier water cartridge helps reduce the growth of mold and odor causing bacteria in the water of a humidifier tank. It can be used in both evaporative and ultrasonic humidifiers. One Aquastick can be used in humidifiers with a tank that is up to one gallon in size. For humidifiers with a capacity of one to two gallons, use two AquaSticksFor best results, it is recommended to clean your humidifier tank according to the manufacturer's instructions, before using the AquaStick and to use clean, fresh water. Needs to be replaced every 90 Days depending on use and environmental factors. Can be used with most brands and types of humidifiers.

• Fight mold growth: PureGuardian GGHS15 Aquastick humidifier water cartridge helps reduce the growth of mold and odor causing bacteria in the water of a humidifier tank and can be used in both evaporative ultrasonic humidifiers
• Only one stick needed: One Aquastick can be used in humidifiers with a tank that is up to one gallon in size. For humidifiers with a capacity of one to two gallons, use two Aquasticks
• For best results: PureGuardian recommends to clean your humidifier tank according to the manufacturer's instructions before using the AquaStick and to use clean, fresh water. Replace every 90 days
• Easy To Use: Simply drop the GGHS15 AquaStick universal humidifier water cartridge into your humidifier tank. Keep your humidifier's mist clean and functioning properly with ultimate filtration and purification
• PureGuardian: Guardian technologies offers a full range of small appliance-based solutions for happier and healthier lives at home, focused on creating powerful, safe and innovative technologies to help facilitate healthier, happier home environments