CITRONELLA IS A MORE EFFECTIVE DETERRENT FOR SOME DOGS THAN AN UNSCENTED SPRAY. The Petsafe Citronella Spray Refill works with all PetSafe spray products including spray bark control and spray remote trainers. To refill the collar, make sure the unit is turned off. Hold the spray can upright and firmly press the nozzle down into the refill port. Hold for 15 seconds and remove. If spray leaks out, you may need to press harder to complete the seal.
 
Features:
* 150-200 sprays per can (plus some wastage)
* Citronella spray
* Stain-free
* Environmentally friendly
* An ethical approach to problem barking