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Amazon.com : Electric Dog Fence™ Universal Wire - Compatible with PetSafe, Extreme Dog Fence and All Other Underground Dog Fences (500 feet) (500 ft) : Extreme Dog Fence : Pet Supplies
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Amazon.com : Dog Fence Wire - 1000 Feet of Professional Grade Electric Dog Fence Boundary Wire - Weatherproof Insulation and Compatible with All Underground Dog Fences : Extreme Dog Fence : Wireless
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Amazon.com : Pet Control HQ Extra Underground Dog Fence Wire Wireless Electric Fence for Dogs (1/3 Acre Coverage), 492ft, 20AWG, Electric Dog Fence Wire for Dog Containment System In-Ground Pet Boundary Wire :
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