Extreme Dog Fence | Perimeter Technologies Invisible Fence R21 Replacement Collar 7K — 1 Dog + Free Backup Strap
Overview eXtreme Dog Fence offers a cost‑effective replacement collar designed to work with certain Invisible Fence systems,...
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Product type:
Radio and Wireless Fences
- $219.28
- $219.28
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Extreme Dog Fence | Perimeter Technologies Invisible Fence R21 Replacement Collar 7K — 1 Dog + Free Backup Strap
$219.28
Extreme Dog Fence | Perimeter Technologies Invisible Fence R21 Replacement Collar 7K — 1 Dog + Free Backup Strap
$219.28
Description
xOverview
eXtreme Dog Fence offers a cost‑effective replacement collar designed to work with certain Invisible Fence systems, powered by Perimeter Technologies electronics. This 7kHz model can help you add a dog to an existing fence or replace a worn unit, with compatibility details clearly outlined for the right setup.
The collar embraces a lightweight, compact design and is built for daily wear. It weighs about 1.1 oz and is fully waterproof, remaining submersible to 10 ft. This combination supports both everyday outdoor use and more adventurous outings without adding bulk to your dog’s collar.
Compatibility and frequency
Compatibility covers Invisible Fence brand in-ground fences prior to the 800 series, including models like ICT-700, ICT-725, ICT-750, ICT-775, ICT-150, ICT-250, ICT-100, ICT-75, ICT-50, AT-950 and CT-4000. It is not compatible with 800-series or later fences, Boundaries Plus, or Shields Indoor units. By default, many Invisible Fence systems run on 7K, but some setups may use 10K to minimize interference.
Build, manufacturing, and durability
Manufactured in the USA with a sturdy polycarbonate shell, the collar is designed to resist typical dog wear and chew. The internal electronics are optimized to provide a cost‑effective replacement option while maintaining reliable performance for compatible systems.
What’s in the box
- 1x 7k collar receiver with strap
- 2x sets of contacts with comfort covers (short and long)
- 2x sets of training covers (short and long)
- 1x collar battery
Why choose this collar
- Cost‑effective replacement for adding a dog to an existing fence
- Includes a free backup collar strap for easy spare replacement
- Lightweight and waterproof for daily wear and outdoor activity
- Durable USA‑made construction with a polycarbonate housing
FAQ
Q: Is this collar compatible with all Invisible Fence systems?
A: It works with Invisible Fence inground fences prior to the 800 series and select ICT models; it is not compatible with 800 series or later.
Q: What’s included in the package?
A: One 7k collar receiver with strap, two sets of contacts with comfort covers, two sets of training covers, and one collar battery, plus a free backup strap.
Shipping & Return
xShipping
- Free shipping on all U.S. orders, with no minimum purchase.
- Orders are processed within 1–2 business days after payment confirmation; weekend and holiday orders are processed on the next business day.
- Estimated delivery: 3–5 business days after dispatch in most U.S. locations; remote or limited-service areas may take longer.
- Once your order ships, you receive a tracking link by email; tracking usually becomes active within 24–48 hours.
Returns
- 30-day returns from the delivery date with a full refund for unused items in their original condition and packaging.
- Free return shipping: email petlywox@gmail.com with your order number and we send you a prepaid return label.
- Damaged, defective, expired or incorrect items are also returned free of charge for a full refund — please include photos.
- Your refund is issued to the original payment method within 10 business days after we receive and inspect the return.
- Opened food, treats or supplements, used grooming or hygiene items, custom products, sale items and gift cards are not returnable unless they arrived damaged, defective, expired or incorrect.
Full details: Shipping Policy · Refund Policy. Questions? Email petlywox@gmail.com.
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Check the exact measurements and package contents before ordering. Read U.S. delivery details and return conditions. For a product question, email petlywox@gmail.com.
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