A refill for a commercial fragrance dispenser includes a bottle that is capable of irremovably locking into place within a respective fragrance distribution elements, or cage. Such a configuration may prevent inadvertent spilling of fragrance from the bottle. A lock preventer may enable the bottle to be stored within the cage while preventing full insertion of the bottle of the refill into the receptacle of the cage of the refill until assembly of the bottle with the cage and of the cage with the body of a commercial fragrance dispenser are desired. Methods for refilling fragrance dispensers, in which the bottle of a refill is locked within a cage of the refill and coupled to the cage or dispenser, are also disclosed.