Underground Direct Burial Wire and Extension Cord Splice Kit for #10#12#14 AWG - 3 Wires - 3 Connectors, and 3 CLEAR Dual Wall 3M Heat Shrinks w/ 8" Long BLACK Heavy Dual
Gardner Bender 600V Black 14 AWG to 18 AWG Underground UF Wire Splice Kit - Walmart.com
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How To Splice Underground Wire | Family Handyman
14 TO 8 GAUGE UF WIRE, CU ONLY, UL LISTED, UNDERGROUND SPLICE KIT. 4 CONDUCTOR. INCLUDES 1 CONNECTOR AND 1 PIECE OF HEAT SHRINK TUBINGSouthern Tier Electric Supply