PetSafe Spray Can Refill for Spray Bark Control and Remote Trainer Works with all PetSafe Spray products including Spray Bark Control and Spray Remote Trainers 300-400 spray refills per can Stain-Free Enviromentally friendly Unscented refill also available, PAC19-11883 Call, chat or email the PetSafe US-based customer care specialists six days a week