Perimeter Technologies Add-on or Replacement Electric Dog Fence Containment Collar - Compatible with Invisible Fence R21 Series Fences (7k Frequency)

INVISIBLE FENCE COMPATIBLE - This collar will work with Invisible Fence Brand Inground Fences prior to the 800 Series, Including ICT-700, ICT-725,

The Official Website for Invisible Fence - The Invisible Fence® Brand

Perimeter Technologies Add-on or Replacement Electric Dog Fence Containment Collar - Compatible with Invisible Fence R21 Series Fences (7k Frequency) : Perimeter Technologies : Wireless Pet Fence Products : Pet Supplies

INVISIBLE FENCE COMPATIBLE - This collar will work with Invisible Fence Brand Inground Fences prior to the 800 Series, Including ICT-700, ICT-725,

Perimeter Technologies Add-on or Replacement Electric Dog Fence Containment Collar - Compatible with Invisible Fence R21 Series Fences (7k Frequency)

Perimeter Technology - R21 Invisible Fence Compatible Dog Collar - 7K Frequency : Perimeter Technologies : Wireless Pet Fence Products : Pet Supplies

Perimeter Technologies R21 Replacement Dog Electric Fence Collar & Reviews

Perimeter Technology - R21 Invisible Fence Compatible Dog Collar - 7K Frequency : Perimeter Technologies : Wireless Pet Fence Products : Pet Supplies

Perimeter Technologies Invisible Fence R21 Replacement Collar 10k/7 Freq PIR-003

IF Receivers - Dog Fence Guy installs invisible type dog and pet fence systems in Lancaster, York, Lebanon, Dauphin, Chester, Berks Co Pa.

SportDOG Brand Underground Wire Electric Fence Kit with Add-A-Dog Collar - In-Ground Fence System for 2 Dogs - Yahoo Shopping

Perimeter Technologies Invisible Fense 700 Series Compatible Dog Fence Collar