Kontrol Crystals Refill Pack of 2

Refill pack of absorbent calcium chloride crystals. High affinity to water to attract excess humidity from the air through a simple chemical process. Kontrol Krystals, hygroscopic flakes of calcium chloride, attract excess moisture in the air like a magnet does iron filings, and helps combat condensation, damp, mould, mildew and prevent unsightly damp stains and musty odours. For use with Kontrol moisture traps our system is noiseless and requires no electricity or batteries for use, and begins working immediately.