Underground Butt Splice Kit (#14 - #8 AWG). Used for waterproof repair of well pipe cables and splices of stranded cable #14 - #8 AWG. 0.4" ID heat shrink tube. 1/4" x 1-1/4" brass butt splice. Rated at 600 V max.• 0.4" ID heat shrink tube• 1/4" x 1-1/4" brass butt splice• Rated at 600 V max• 8 to 14 american wire gauge single conductor copper cable• Makes a waterproof splice.Kit Contains:• 1 Screw splice connectors• 1 4" Heavy-wall polyolefin heat-shrink tubing with watertight adhesive liner.