MULTIPLE USE - Works with all underground dog-fence brands & low-voltage projects - landscape lights, irrigation valves, pathway wiring - ideal for direct-bury or other wet locations. WATERPROOF SEAL - PVC tube pre-filled with weather-proof gel locks out moisture, rust & corrosion for years of worry-free, direct-bury service in rain, snow, sprinklers, or soaked soil. UNIVERSAL FIT - Medium wire nut grips 12-20 AWG solid copper; compatible with PetSafe, SportDog, Dogtra & most in-ground fence wires, plus landscape lighting or irrigation pump leads. PREMIUM BUILD - Durable and flexible, these wire nut connectors are designed to protect your wires and provide everything you need for your fencing project. FAST and EASY - Strip, twist wires, push into tube, excess gel overflows to seal in seconds, close, and bury immediately; - PetsTEK reliability, proudly made in the USA. Restore underground dog-fence continuity in minutes with the PetsTEK Waterproof Wire Splice Kit. Each kit pairs a medium-size wire nut with a PVC tube pre-filled with proprietary waterproof gel. Simply strip the wire of insulation, twist wires together inside the nut, push the connection into the tube, and let the gel overflow to create a permanent, corrosion-proof seal that can be buried immediately. These connectors fit 12-, 14-, 16-, 18- and 20-gauge solid copper wire compatible with PetSafe, SportDog, Dogtra and most competing in-ground fence systems. The durable UL-listed components resist UV exposure, soil acidity, lawn-mower vibration and seasonal temperature swings, delivering years of worry-free containment. Not just for pet fencing—use PetsTEK splices on landscape lighting, irrigation valves, pathway lights and other low-voltage outdoor projects that demand a watertight, direct-bury connection. Proudly engineered and manufactured in the USA for professional-grade reliability.