Perimeter Technologies Invisible Fence R21 Replacement Collar 7K
![](https://i.pinimg.com/564x/60/4c/44/604c444967e58436717d2f66b2b29146.jpg)
![](https://assets.wfcdn.com/im/24911341/resize-h380-w380%5Ecompr-r70/2545/254554779/default_name.jpg)
Perimeter Technologies R21 Replacement Dog Electric Fence Collar
![](https://m.media-amazon.com/images/I/41GduBNngJL._AC_.jpg)
Perimeter Technologies Invisible Fence R21
INVISIBLE FENCE COMPATIBLE - This Collar Will Work with Invisible Fence Brand Inground Fences Prior to the 800 Series, Including ICT-700, ICT-725,
![](https://m.media-amazon.com/images/I/41EUzc4etPL._AC_.jpg)
Perimeter Technologies Invisible Fence R21 Replacement Collar 7K - 1 Dog and Free Backup Collar Strap
![](https://m.media-amazon.com/images/S/al-na-9d5791cf-3faf/cb43fd67-a890-4ba9-addb-9aab7b36b87e._SL480_.jpg)
Pet Stop Collar Replacement
![](https://m.media-amazon.com/images/I/5181apgViaL._AC_UF894,1000_QL80_.jpg)
Perimeter Technologies Invisible Fence R21
INVISIBLE FENCE COMPATIBLE - This Collar Will Work with Invisible Fence Brand Inground Fences Prior to the 800 Series, Including ICT-700, ICT-725,
![](https://m.media-amazon.com/images/I/5181apgViaL.jpg)
Perimeter Technologies Invisible Fence R21 Replacement Collar 7K - 1 Dog and Free Backup Collar Strap
Perimeter Invisible Fence R21 10K PTPIR-003-10K Dog Fence Collar
![](https://m.media-amazon.com/images/S/al-na-9d5791cf-3faf/92980f99-e9d3-48d8-9e38-56759dd1f52e._SL480_.jpg)
Microlite Invisible Fence Collar
![](https://i5.walmartimages.com/seo/MASBRILL-2-in-1-Wireless-Electric-Dog-Fence-2-Dogs-System-Training-Collar-Remote-Containment-Adjustable-Charging-Station_f4ba692c-9223-48a3-b16b-9b44cf89c88b.1101434a090365ab2653cec3999329c1.jpeg)
Perimeter Technologies Invisible Fence Replacement Collar 7K
![](https://perimetertechnologies.com/wp-content/uploads/2016/10/R-21-zoom.jpg)
Invisible Fence® Brand Compatible Battery
![](https://www.radiofence.com/cdn-cgi/image/quality%3D85/assets/images/PFS-003-perimeter-pet-fence-collar_thumbnail.jpg)
Perimeter Technologies
![](https://i5.walmartimages.com/asr/b31f1bd5-b2a1-4f61-b1ac-7fda24f16017.6767c697654438302c9aa0652df81d96.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Perimeter Technologies Invisible Fence Replacement Collar 10K
![](https://cdn.sanity.io/images/d075r9p6/production/fd17696e6a59e0ebab4ead115f98cdb6c313c35a-1600x686.jpg?w=1600&h=686&q=75&fit=max&auto=format)
Dog Fence FAQs - The Invisible Fence® Brand