343e44cd_Review__PetSafe_In_Ground_Click_here
[0] Other Notes Cross Compatibility Largest Capacity Vibration Warning Pro Durability 1000 ft. of Wire Long & Short Contacts Big Collar [Dogtra Gold 3000 Click here] Long & Short Contacts Training Contacts Progressive Correction Warning Vibration 18-Gauge Wire Big Collar [Dogtek EF-4000 Click here] Long & Short Contacts Adjustable Warning Zone No Low Battery Light Up To 24' Signal Field Motion Sensor Short & Long Contacts [PetSafe In-Ground Click here] 
Best Budget System Smaller Collar Cross Compatibility
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PetSafe In-Ground Click here