Guardian Technologies PureGuardian GGHS152PK Aquastick Antimicrobial Treatment, Pure Guardian Humidifiers, Fits All Brands, Reduces Mold & Odors, Ultrasonic & Evaporative, Two 2-Packs, 2 pack, 2 Ounce

Guardian Technologies PureGuardian GGHS152PK Aquastick Antimicrobial Treatment, Pure Guardian Humidifiers, Fits All Brands, Reduces Mold & Odors, Ultrasonic & Evaporative, Two 2-Packs, 2 pack, 2 OunceFight 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 humidifiersOnly 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 AquasticksFor 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 daysEasy to use: Simply drop the GGHS15 AquaStick universal humidifier water cartridge. Keep your humidifier's mist clean and functioning properly with ultimate filtration and purificationPur