Combats condensation and musty odors Attracts excess humidity from the air by a simple chemical process Will continue to function effectively for up to 2-3 months after exposure to the surrounding air Ideal for refilling all Granular Moisture Absorbers Comes in a re-sealable pack 2.5 KG Also available in a 500g package Kontrol Replacement Moisture Absorber Crystal Refill 2.5 KG Protect your home from the effects of condensation and musty odors with Kontrol Krystal Replacement Moisture Absorber Crystals. Large enough to collect up to a litre of liquid but compact enough to sit on windowsills and fit neatly in cupboards, caravans and more, it gives you protection where you need it most without the need for batteries or a power source. Kontrol Krystal, Anhydrous flakes of calcium chloride (CaCl), have a high affinity to water and readily attract excess humidity from the air by a simple chemical process. When used in a moisture trap the Krystals begin to coagulate (sometimes developing a discolored crust) and eventually, after a few weeks and depending on levels of humidity/dampness, the liquid will begin to collect in the base of the moisture trap. Features Fresh linen scent Combats condensation and musty odors Original non-electric, non-toxic, maintenance-free dehumidifier Provide clean, fresh and inviting spaces