EzCal Pro Advance Cleaner/Descaler (Liquid)

Single use eco-friendly humidifier maintenance system, All natural, bio-degradable, phosphate free and odourless, Use for your mid-season deep cleaning, Ideal for pre and post season maintenance, Cleans and descales all humidifiers and cleans mineral build-up.; 2.2"W x 7.75"H x 2.2"D; Citric acid; Clean your humidifier with EZCal every 2-4 weeks; Made in USA