A refill for devices for evaporating volatile substances includes a body (1) provided with a neck (2). The body has a first coupling means (4; 5; 6) for coupling the body to a device (10; 20; 30) for evaporating volatile substances and also at least a second coupling means (4; 5; 6) for coupling the body to a device for evaporating volatile substances (10; 20; 30).
The refill can be used with different devices for evaporating volatile substances by using one of said coupling means, depending on the means provided in the device.