JSC Wire 14/4 AWG Direct Burial Underground Speaker & Lighting Copper Wire 1 ft.
4-4-4 Aluminum URD Cable • Cut by the Foot | Wire & Cable Your Way
Amazon.com: Voltive 18/4 Low Voltage Wire, 100ft, Black - Stranded Bare Copper - UL Listed CL2/CL3 & Direct Burial Rated - Alarm/Security, LED Lighting, Audio/Speakers : Electronics