Petsafe RFA-1 In-Ground Dog 20 Gauge Containment Fence Solid Boundary Wire 500'

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4.00 LBS
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Expands your containment system beyond the initial 500 ft. of wire that accompanies the In-Ground Fencing™ system kit. Each spool is 500 ft/150 meters of 20 gauge, solid core, burial-grade wire. The table below is a guide to help determine the amount of wire you will need based on the area in which you want to contain your pet. Length of wire needed will vary due to the amount of twisted wire and layout used. For proper system performance, the splice connection must be waterproof. We recommend using Gel-filled Splice Capsules and wire nuts (RFA-366) when splicing your additional Boundary Wire.


  • 20-gauge wire
  • 150m / 500 ft burial grade wire
  • Wire Insulation color may vary
  • 500 feet
  • Compatible with PetSafe, Guardian, or Innotek in-ground fence kits

How Much Wire Do You Need?

Acres Feet of Wire
1/3 500
1/2 700
1 1000
2 1400
3 1700
4 2000
5 2200
6 2400
7 2600
8 2800
9 3000
10 3200
12 3500
14 3700
16 4000
18 4200
20 4500
25 5000
One Year Manufacturer Warranty
  • 5
    Can't go wrong

    Posted by Stan on 12th Nov 2021

    As far as underground fences go, you have to have special outside wire, I once tried using just regular wire and eventually it stops working. This is a great product and not only that, but it was half the price that it is in my closest dept store.