4 Gauge Heavy Duty Vinyl Butt Splices 2 Pieces Email Economy Pack of 2 Vinyl Insulated Butt Splice Connectors for 4 AWG Wire. Part #: 2068F Part #: 2068F Quantity Price ea. 1 + $7.68 7.68 Back to: Vinyl Insulated Butt Connectors / Splices Ask a question about this product 6 Gauge Heavy Duty Vinyl Butt Splices 2 Pieces 2 Gauge Heavy Duty Vinyl Butt Splices 2 Pieces Description 2 Piece economy pack of 4 awg yellow vinyl (PVC) insulated butt splice connectors. Rated for use up to 600 volts. Temperature rating up to 221°F (105°C). For splicing 4 gauge wire. Flared wire entry for easy wire insertion. Made in the USA.