PetSafe 3/4" Replacement Collar Strap Combo Accessory Refresh RFA 529 Keep your pet safe and yourself stress free, Authentic Sparky PetCo- not a ripoff Compatible with most Inground and Under Ground Pet Fences Works with: PUL-250 Ultralight Receiver Collar, PUL-275 DeluxeUltralight Receiver Collar, PIG00-13737 Rechargeable Receiver Collar, PRF-275-17-19 Stubborn Dog Receiver Collar, PetSafe PIF-275-19 Wireless Receiver Collar , PetSafe PIG00-14673Rechargeable In-Ground Fence, PetSafe PIG00-13661 In-Ground Dog Fence, PetSafe PIG00-14582Basic In-Ground Fence PRF-304W Deluxe In-Ground Dog Fence, PIG00-10777 In-Ground Fence, PetSafe MIG00-10939 Stubborn Dog In-Ground Fence, PetSafe MIG00-10938 Deluxe In-Ground Dog Fence, PetSafe ZIG00-14658 Stubborn In-Ground Dog Fence, PetSafe ZIG00-14654 In-Ground Dog Fence, PIG00-11115 Yardmax In-Ground Fence PIG00-11116 Receiver Collar, PIF00-12917 Wireless Fence , PetSafe PIF00-14288 Stay + Play Wireless Receiver ,