- Compatible with PetSafe, Pet Stop, and Invisible Fence dog collars including the R21, R22, and R51 models
- Exact fit and safety for your dog collar and training needs
- 3V lithium dog collar battery for PetSafe, Pet Stop and Invisible Fence series
- Long lasting and reliable replacement for Invisible Fence Dog Collar
- Made with high quality parts and guaranteed to meet or exceed the original equipment manufacturer's specifications
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Cancer and Reproductive Harm - www.P65Warnings.ca.gov