The Oasis Excel Cigar Humidifier Refill Pack is a complete set, ready to be used with an Oasis Excel Cigar Humidifier only (and no other model).
This product comes prefilled with distilled water and is impregnated with an antifungal agent. Given it is normally used, you can leave the cartridge for six to nine months in your Oasis Excel Humidifier before replacing it. You can refill the cartridge with distilled water 4 to 5 times before buying another refill. This Oasis Excel Cigar Humidifier will last for a while and can therefore be used several times before it needs to be replaced.