Filter Filters Butt Connector 4 Gauge Remove All Filters Price Under $50 (2) Condition New (2) Brand Install Bay (2) Qty Package 25 (2) Install Bay CUR4 Package of 25 4-Gauge Uninsulated Copper Butt Connector $16.95 Install Bay YVBC4 Vinyl Butt Connectors Yellow Color 4 Gauge - 25 / Bag $24.95