ProTec PC-1 Humidifier Tank Cleaning Cartridge (Pack of 2) Posted on January 31, 2012 by cleaner Rating: List Price: unavailable Sale Price: Too low to display. Availability: unspecified Product Description No description available. Details No features available. out of 5 based on ratings. 0 user reviews Bathroom Germs treatment Humidifiers http://www.bathroomgerms.com/2012/01/31/protec-pc-1-humidifier-tank-cleaning-cartridge-pack-of-2/