Homeowners who need additional wire for larger yards only need to purchase extra boundary kits.
Each kit includes 500 feet of 20 gauge boundary wire, waterproof wire splices, and training flags to help your dog learn the boundaries.
Used with the following systems: SD-2000, SD-2100, SD-2200, SD-3000, SD-3100, HF-25W, HF-200W, CT-400A, CB-100W, CKC-25W, and KF-25W.