Ten 3M 314 09230 IDC Self Stripping Pigtail Wire Connectors 14-22 AWG - USA Made | eBay
3M Moisture Guard Weatherproof, UV-Resistant Connector for 2-3 Wires, 16-14 AWG (solid/stranded), 25 per bag: Amazon.com: Tools & Home Improvement
DryConn Small Waterproof Wire Connectors - Aqua/Orange (6-Pack) | Outdoor | UL Listed | Weatherproof | 600V Rated in the Wire Connectors department at Lowes.com
Direct Bury Splice Kits - DBRY - 3M - Par West Turf
3M Performance Plus Wire Connectors, Universal Connector Kit, O/B+, R/Y+, B/G+ (30 Each/Bag (Case of 6 Bags)) ELEC-KIT-30 - The Home Depot