Need more wire? Our BE-500ULTRA Kit gives you 500 feet of our special Ultra-Wire, 50 Brightly Colored Flags and 3 improved, waterproof wire connectors.

This wire was specially designed and manufactured for one and only one purpose, electronic dog fence boundary wire. It has electrical and mechanical properties optimized for your dog containment application exceeding even 18 gauge wire performance. The wire is solid core copper designed for optimum electrical impediance. It has an extra thick jacket made of a specially formulated insulation material that is especially resistant to Ultraviolet sunlight, moisture, rot and corrosion.

It's 40% thicker overall and about three times stronger than standard 18 gauge wire, greatly reducing the risk of wire breaks. This is hands down the best dog containment fence wire you will find anywhere. It's guaranteed to last at least 20 years! Best of all, since this wire is manufactured in large quantities exclusively for High Tech Pet, we can offer you an exceptional value price!

Compare Our New Ultra-Wire to the Other Guys' Wire: Look at the Ultra-wire Comparison Chart tab to see how heavy-duty 18-gauge wire compares against standard 20-gauge wire. Each spool holds the same 500-foot length of wire. The fact that the Ultra-wire spool is so much bigger illustrates how much thicker Ultra-wire is in overall diameter. That translates to higher strength, longer life and less chance of wire breaks!