(2) PC-1 units may ship in place of a single PC-2. The units are exactly the same, only the retail packaging differs.
Honeywell PC-2 ProTec™ Continuous Cleaning Cartridge - 2 Pack provides continuous protection against mineral buildup in humidifier. Simply drop the cartridge in the tank. Works in most humidifiers. Note: The Protec™ Cleaning Cartridge is antimicrobially treated to help prevent growth and migration of mold, fungus, algae, and other odor-causing bacteria in the cartridge only. Protec does not protect users or others from bacteria, viruses, germs or other disease organisms.
(2) PC-1 units may ship in place of a single PC-2. The units are exactly the same, only the retail packaging differs.