{"product_id":"perimeter-technologies-invisible-fence-r21-replacement-collar-7k","title":"Perimeter Technologies Invisible Fence R21 Replacement Collar - 7K","description":"\u003cp\u003e\u003cstrong\u003eYour dog's containment system is only as reliable as the collar it runs on — don't let a worn-out receiver put your dog at risk.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis Perimeter Technologies replacement collar is fully compatible with Invisible Fence R21 systems using 7K frequency. It's a direct drop-in replacement — same fit, same signal, same reliable containment — so you can restore your existing system without replacing the whole fence. Waterproof and built for daily outdoor use, it keeps your dog safely contained without the cost of a full system upgrade.\u003c\/p\u003e\u003cp\u003eIf your current R21 collar is damaged, worn, or lost, this is the exact replacement you need to get your containment system back up and running fast.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with Invisible Fence R21 systems\u003c\/strong\u003e — 7K frequency, direct replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo new fence installation needed\u003c\/strong\u003e — works with your existing boundary wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof construction\u003c\/strong\u003e — built for daily outdoor use in all weather\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRechargeable battery\u003c\/strong\u003e — no disposable batteries to replace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable fit\u003c\/strong\u003e — fits a wide range of dog neck sizes\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible system: Invisible Fence R21\u003c\/li\u003e\n\u003cli\u003eFrequency: 7K\u003c\/li\u003e\n\u003cli\u003eWaterproof: Yes\u003c\/li\u003e\n\u003cli\u003eBattery: Rechargeable\u003c\/li\u003e\n\u003cli\u003eFits neck sizes: 6\"–28\"\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eR21 system owners replacing a worn or damaged collar\u003c\/li\u003e\n\u003cli\u003eMulti-dog households needing a second R21 receiver\u003c\/li\u003e\n\u003cli\u003eAnyone restoring an existing Invisible Fence system\u003c\/li\u003e\n\u003cli\u003eDogs of all sizes with R21-compatible fences\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Essential Pet Products","offers":[{"title":"Default Title","offer_id":47923868205294,"sku":"PIR-003 7k","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/8198\/6542\/files\/PIR-003-7k-invisible-fence-collar.jpg?v=1776737947","url":"https:\/\/valor-home-and-living-llc.myshopify.com\/products\/perimeter-technologies-invisible-fence-r21-replacement-collar-7k","provider":"Valor Home and Living, LLC","version":"1.0","type":"link"}