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    Best Seller
    Invisible Fence Compatible R21, R51 and Microlite Dog Collar Battery 2PK by , All Heavy Microlite Nylon Waterproof Fense R21 Training compatible R22 7k.., By Pet Stop

    Invisible Fence Compatible R21, R51 and Microlite Dog Collar Battery 2PK by , All Heavy Microlite Nylon Waterproof Fense R21 Training compatible R22 7k.., By Pet Stop

    Less Expensive than the original.Compatible with R21, R22, or R51.The Perimeter Brand Invisible Fence Replacement Battery is the best solution for keeping your Invisible Fence Brand system operating safely.Pack of 2 batteries. more

    $25.69

    FREE shipping

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    Perimeter Technologies Invisible Fence Compatible R21 and R51 Dog Collar Battery Year Supply

    Perimeter Technologies Invisible Fence Compatible R21 and R51 Dog Collar Battery Year Supply

    Perimeter Technologies Invisible Fence Compatible R21 and R51 Dog Collar Battery Year Supply: Includes 3 batteries which will last a year under normal usage 3V lithium-ion battery Average battery life of 3-6 months Rubber gasket provides a water tight... more

    $26.85 $15.88

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    Best Seller
    Perimeter Technologies Invisible Fence R21 Compatible Dog Fence Collar 10K (Two Pack)

    Perimeter Technologies Invisible Fence R21 Compatible Dog Fence Collar 10K (Two Pack)

    The Perimeter Technologies ComputerReceiverTM Collar is designed to replace your Invisible Fence brand R21TM collar or add a new pet to your existing Invisible Fence system for a fraction of the cost. The Perimeter ComputerReceiverTM Collar will work... more

    $319.90

    FREE shipping

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    Invisible Fence R21 Compatible Dog Fence Collar (ptpir-003)

    Invisible Fence R21 Compatible Dog Fence Collar (ptpir-003)

    The Perimeter Technologies ComputerReceiver™ Collar is designed to replace your Invisible Fence brand R21™ collar or add a new pet to your existing Invisible Fence system - and for a fraction of the cost The Perimeter ComputerReceiver™ Collar will work... more

    $159.95

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    Invisible Fence R21 Compatible Dog Fence Collar Ptpir-003

    Invisible Fence R21 Compatible Dog Fence Collar Ptpir-003

    The Perimeter Technologies ComputerReceiver" Collar is designed to replace your Invisible Fence brand R21" collar or add a new pet to your existing Invisible Fence system - and for a fraction of the cost The Perimeter ComputerReceiver" Collar will work... more

    $159.95

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    Invisible Fence R21 Compatible Dog Fence Collar Ptpir-003

    Invisible Fence R21 Compatible Dog Fence Collar Ptpir-003

    The Perimeter Technologies ComputerReceiver™ Collar is designed to replace your Invisible Fence brand R21™ collar or add a new pet to your existing Invisible Fence system - and for a fraction of the cost The Perimeter ComputerReceiver™ Collar will work... more

    $159.95

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    Invisible Fence R21 Compatible Dog Fence Collar (ptpir-003)

    Invisible Fence R21 Compatible Dog Fence Collar (ptpir-003)

    We will beat any advertised price on this item. Find a lower price online and we will match it Call us at 1-888-286-2347 x 700 or for your price match.The Perimeter Technologies ComputerReceiver" Collar is designed to replace your Invisible Fence brand... more

    $159.95

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    Invisible Fence R21 Compatible Dog Fence Collar Ptpir-003

    Invisible Fence R21 Compatible Dog Fence Collar Ptpir-003

    The Perimeter Technologies ComputerReceiver™ Collar is designed to replace your Invisible Fence brand R21™ collar or add a new pet to your existing Invisible Fence system - and for a fraction of the cost The Perimeter ComputerReceiver™ Collar will work... more

    $159.95

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    Peazz

    (100+)
    Perimeter Technologies Invisible Fence Compatible R21 and R51 Dog Collar Battery Year Supply, Standard

    Perimeter Technologies Invisible Fence Compatible R21 and R51 Dog Collar Battery Year Supply, Standard

    Each battery will last as long or longer the real Invisible Fence Brand PowerCap batteries. Compatible with all Invisible Fence Brand R21, R51 and MicroLite electronic dog fence receiver collars. The battery design was approved by the chief engineer at... more

    $38.89

    FREE shipping

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    Perimeter Technologies Ifa-001-year Invisible Fence Compatible R21 And R51 Dog Collar Battery Year Supply

    Perimeter Technologies Ifa-001-year Invisible Fence Compatible R21 And R51 Dog Collar Battery Year Supply

    Each battery will last as long or longer the real Invisible Fence Brand PowerCap batteries. Compatible with all Invisible Fence Brand R21, R51 and MicroLite electronic dog fence receiver collars. The battery design was approved by the chief engineer at... more

    $38.79

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    Peazz

    (100+)
    Perimeter Technologies Ifa-001 Invisible Fence Compatible R21 And R51 Dog Collar Battery

    Perimeter Technologies Ifa-001 Invisible Fence Compatible R21 And R51 Dog Collar Battery

    Each battery will last as long or longer the real Invisible Fence Brand PowerCap batteries. Compatible with all Invisible Fence Brand R21, R51 and MicroLite electronic dog fence receiver collars. The battery design was approved by the chief engineer at... more

    $21.64

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    Perimeter Technologies Ifa-001 Invisible Fence Compatible R21 And R51 Dog Collar Battery

    Perimeter Technologies Ifa-001 Invisible Fence Compatible R21 And R51 Dog Collar Battery

    Each battery will last as long or longer the real Invisible Fence Brand PowerCap batteries. Compatible with all Invisible Fence Brand R21, R51 and MicroLite electronic dog fence receiver collars. The battery design was approved by the chief engineer at... more

    $21.64

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    Perimeter Technologies Ifa-001 Invisible Fence Compatible R21 And R51 Dog Collar Battery

    Perimeter Technologies Ifa-001 Invisible Fence Compatible R21 And R51 Dog Collar Battery

    Each battery will last as long or longer the real Invisible Fence Brand PowerCap batteries. Compatible with all Invisible Fence Brand R21, R51 and MicroLite electronic dog fence receiver collars. The battery design was approved by the chief engineer at... more

    $21.64

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    Peazz

    (100+)
    Perimeter Technologies Ifa-001-year Invisible Fence Compatible R21 And R51 Dog Collar Battery Year Supply

    Perimeter Technologies Ifa-001-year Invisible Fence Compatible R21 And R51 Dog Collar Battery Year Supply

    Each battery will last as long or longer the real Invisible Fence Brand PowerCap batteries. Compatible with all Invisible Fence Brand R21, R51 and MicroLite electronic dog fence receiver collars. The battery design was approved by the chief engineer at... more

    $38.79

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    Perimeter Technologies Ifa-001-year Invisible Fence Compatible R21 And R51 Dog Collar Battery Year Supply

    Perimeter Technologies Ifa-001-year Invisible Fence Compatible R21 And R51 Dog Collar Battery Year Supply

    Each battery will last as long or longer the real Invisible Fence Brand PowerCap batteries. Compatible with all Invisible Fence Brand R21, R51 and MicroLite electronic dog fence receiver collars. The battery design was approved by the chief engineer at... more

    $38.79

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    Perimeter Technologies Ifa-001 Invisible Fence Compatible R21 And R51 Dog Collar Battery

    Perimeter Technologies Ifa-001 Invisible Fence Compatible R21 And R51 Dog Collar Battery

    Each battery will last as long or longer the real Invisible Fence Brand PowerCap batteries. Compatible with all Invisible Fence Brand R21, R51 and MicroLite electronic dog fence receiver collars. The battery design was approved by the chief engineer at... more

    $21.64

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    Invisible Fence Compatible Dog Fence Collar Battery Ifa-001

    Invisible Fence Compatible Dog Fence Collar Battery Ifa-001

    These 3-volt lithium batteries will replace your Invisible Fence brand Powercap dog fence collar batteries - at a fraction of the cost This replacement battery is compatible with all Invisible Fence R21, R51, and A12 dog fence collars and the Invisible... more

    $17.95

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    Invisible Fence Compatible Dog Fence Collar Battery Ifa-001

    Invisible Fence Compatible Dog Fence Collar Battery Ifa-001

    These 3-volt lithium batteries will replace your Invisible Fence brand Powercap dog fence collar batteries - at a fraction of the cost This replacement battery is compatible with all Invisible Fence R21, R51, and A12 dog fence collars and the Invisible... more

    $9.95

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    Invisible Fence Compatible R21 And R51 Dog Collar Battery - Gray

    Invisible Fence Compatible R21 And R51 Dog Collar Battery - Gray

    Each battery will last as long or longer the real Invisible Fence Brand PowerCap batteries. Compatible with all Invisible Fence Brand R21, R51 and MicroLite electronic dog fence receiver collars. The battery design was approved by the chief engineer at... more

    $21.43

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    Invisible Fence Compatible R21 And R51 Dog Collar Battery Year Supply -

    Invisible Fence Compatible R21 And R51 Dog Collar Battery Year Supply -

    Each battery will last as long or longer the real Invisible Fence Brand PowerCap batteries. Compatible with all Invisible Fence Brand R21, R51 and MicroLite electronic dog fence receiver collars. The battery design was approved by the chief engineer at... more

    $35.19

    FREE shipping

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    Sparky Pet Invisible Fence Reflective Dog Collars, Red

    Sparky Pet Invisible Fence Reflective Dog Collars, Red

    Keep your pet safe and yourself stress free. Sparky pet 1" red nylon collar comes with a reflective stripe to help see your pet at night. Nylon strap is heavy duty and comes with an "easy lock" buckle for ease of use. Perfect replacement strap for if... more

    $13.99

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    Invisible Fence Batteries Compatible* 3 Pack * Invisible Fence Powercap Batteries for R21|R22|R51| Invisible Fence Microlite Receiver Collars * Compare to Perimeter Battery R21 * Premium Replacement Batteries

    Invisible Fence Batteries Compatible* 3 Pack * Invisible Fence Powercap Batteries for R21|R22|R51| Invisible Fence Microlite Receiver Collars * Compare to Perimeter Battery R21 * Premium Replacement Batteries

    'Safe, reliable & eco-friendly replacement Invisible Fence Battery Pack is the obvious choice for invisible fence owners' Replace Your Invisible Fence power cap Batteries, Hassle-Free The Eco-Extreme pack includes 4 replacement batteries, all 100%... more

    $26.99

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    Invisible Fence Batteries Compatible* * Invisible Fence Powercap Batteries for R21|R22|R51| Invisible Fence Microlite Receiver Collars * Compare to Perimeter Battery R21 * Premium Replacement Batteries

    Invisible Fence Batteries Compatible* * Invisible Fence Powercap Batteries for R21|R22|R51| Invisible Fence Microlite Receiver Collars * Compare to Perimeter Battery R21 * Premium Replacement Batteries

    'Safe, reliable & eco-friendly replacement Invisible Fence Battery Pack is the obvious choice for invisible fence owners' Replace Your Invisible Fence power cap Batteries, Hassle-Free The Eco-Extreme pack includes a single replacement battery, 100%... more

    $8.99

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    Invisible Fence R21 Replacement Collar 10k

    Invisible Fence R21 Replacement Collar 10k

    Don’t be fooled by the low aftermarket price. Perimeter Technologies is a brand you can trust with products that are loaded with exclusive features and benefits not found in the original. As a matter of fact, Perimeter Technologies' President is the... more

    $159.95

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    DOGTEK EF-4000B25 Electronic Dog Fence System with 2 Collars

    DOGTEK EF-4000B25 Electronic Dog Fence System with 2 Collars

    Click here for additional savings!

    Keep your dog safe by using this Dogtek EF-4000B25 Electronic Dog Fence System. This invisible dog fence enables you to keep one or more dogs safe in complete freedom. They stay within a perimeter that you define without the need of an ugly containment... more

    $153.82

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    Smarty Pets Deluxe Electronic Dog Fence Collar

    Smarty Pets Deluxe Electronic Dog Fence Collar

    Click here for additional savings!

    The Smarty Pets SP-FC-7 water resistant collar is compatible with all Smarty Pets electronic fences. Features progressive static stimulus and progressive training tones that reinforce the static stimulus, using a special, waterproof speaker that... more

    $49.36

    FREE shipping

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    DOGTEK Boundary Wire For Electronic Dog Fence System, 500 ft.

    DOGTEK Boundary Wire For Electronic Dog Fence System, 500 ft.

    Click here for additional savings!

    This 500' spool of 20 AWG boundary wire is designed for the Dogtek EF-4000B25 and EF-6000 electronic dog fences. It's also compatible with other brands of pet fences. The yellow polyethylene jacket provides excellent physical protection as well as... more

    $27.36

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    Perimeter Technologies Invisible Fence Compatible R21 and R51 Dog Collar Battery, Gray

    Perimeter Technologies Invisible Fence Compatible R21 and R51 Dog Collar Battery, Gray

    Perimeter Technologies Invisible Fence Compatible R21 and R51 Dog Collar Battery, Gray: 3V lithium-ion battery Average battery life of 3-6 months Rubber gasket provides a water tight seal Tamper proof design with coin slot for battery removal more

    $58.06 $15.88

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    Invisible Fense 700 Series Compatible Dog Fence Collar 10k Frequency

    Invisible Fense 700 Series Compatible Dog Fence Collar 10k Frequency

    The Perimeter ComputerReceiver Collar for Invisible Fence Brand Dog Fences is guaranteed to work with your compatible Invisible Fence Brand pet fence system or we will promptly refund your money. Better than the Invisible Fence R21 Dog Fence collar!... more

    $177.78

    FREE shipping

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    Perimeter Technologies Invisible Fence R21 Compatible Dog Fence Collar 7K (Two Pack)

    Perimeter Technologies Invisible Fence R21 Compatible Dog Fence Collar 7K (Two Pack)

    The Perimeter Technologies Computer ReceiverTM Collar is designed to replace your Invisible Fence brand R21TM collar or add a new pet to your existing Invisible Fence system for a fraction of the cost. The Perimeter Computer ReceiverTM Collar will work... more

    $319.90

    FREE shipping

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    Invisible Fence Compatible R21, R51 and Microlite Dog Collar Battery

    Invisible Fence Compatible R21, R51 and Microlite Dog Collar Battery

    -Works the same as invisible fence brand.-Perimeter Technologies brand R21 battery-Works same amount for 1/2 the cost more

    $9.95

    FREE shipping

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    Invisible Fence Compatible R21, R51 and Microlite Dog Collar Battery by By ThePetStop

    Invisible Fence Compatible R21, R51 and Microlite Dog Collar Battery by By ThePetStop

    Invisible Fence Compatible R21, R51 and Microlite Dog Collar Battery by By ThePetStop more

    $13.79

    FREE shipping

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    Invisible Fence Compatible R21, R51 and Microlite Dog Collar Battery by ThePetStop

    Invisible Fence Compatible R21, R51 and Microlite Dog Collar Battery by ThePetStop

    Invisible Fence Compatible R21, R51 and Microlite Dog Collar BatteryBrand New and Guaranteed for 3 MonthsInvisible Fence Compatible R21, R51 and Microlite Dog Collar Battery,Perimeter Technologies,IFA-001 more

    $9.95

    FREE shipping

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    Invisible Fence Compatible Dog Fence Collar Battery (ifa-001)

    Invisible Fence Compatible Dog Fence Collar Battery (ifa-001)

    These 3-volt lithium batteries will replace your Invisible Fence brand Powercap dog fence collar batteries - at a fraction of the cost This replacement battery is compatible with all Invisible Fence R21, R51, and A12 dog fence collars and the Invisible... more

    $9.95

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    Invisible Fence Compatible Dog Fence Collar Battery (ifa-001)

    Invisible Fence Compatible Dog Fence Collar Battery (ifa-001)

    These 3-volt lithium batteries will replace your Invisible Fence brand Powercap dog fence collar batteries - at a fraction of the cost This replacement battery is compatible with all Invisible Fence R21, R51, and A12 dog fence collars and the Invisible... more

    $17.95

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    Invisible Fence Compatible Dog Fence Collar Battery Ifa-001

    Invisible Fence Compatible Dog Fence Collar Battery Ifa-001

    These 3-volt lithium batteries will replace your Invisible Fence brand Powercap dog fence collar batteries - at a fraction of the cost This replacement battery is compatible with all Invisible Fence R21, R51, and A12 dog fence collars and the Invisible... more

    $17.95

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    Peazz

    (100+)
    Invisible Fence Compatible R21, R22, R51 and Microlite Dog Collar Battery, All Microlite WiseWire Fencing Unit R21 R22 Battery Collars FivePack.., By Perimeter Technologies

    Invisible Fence Compatible R21, R22, R51 and Microlite Dog Collar Battery, All Microlite WiseWire Fencing Unit R21 R22 Battery Collars FivePack.., By Perimeter Technologies

    Works same amount for 1/2 the costWorks the same as invisible fence brand.Perimeter Technologies brand R21, R22, R51 battery more

    $13.49

    FREE shipping

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    Invisible Fence Compatible R21, R22, R51 and Microlite Dog Collar Battery

    Invisible Fence Compatible R21, R22, R51 and Microlite Dog Collar Battery

    This is an invisible fence COMPATIBLE brand battery made for R21, R22, R51 and microlite dog collars. This is not the invisible fence BRAND, it is a compatible battery. Welcome to BigWorld. Good quality, to bring you more intimate service. more

    $13.79

    FREE shipping

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    Six Pack Dog Fence Batteries for Invisible Fence R21 or R51 Receiver Collars by Perimeter Technologies

    Six Pack Dog Fence Batteries for Invisible Fence R21 or R51 Receiver Collars by Perimeter Technologies

    These replacement dog fence batteries fit all Invisible Fence Brand R21, R51, or MicroLite electronic dog fence receiver collars. All Invisible Fence Computer Collar series are compatible, including Titanium, Platinum, Graphite, and Mink versions.... more

    $53.70

    FREE shipping

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    Invisible Fence R21 and R51 Dog Collar Battery (3 Pack)

    Invisible Fence R21 and R51 Dog Collar Battery (3 Pack)

    3 volt lithium battery for the Invisible Fence brand for half the price. Each battery will last as long or longer the real Invisible Fence Brand PowerCap batteries. Compatible with all Invisible Fence Brand R21, R51 and MicroLite electronic dog fence... more

    $39.99

    FREE shipping

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