Quick outdoor landscape lighting blue tap or run wire connector with moisture resistant gel 3M™ 804
DryConn Small Waterproof Wire Connectors - Aqua/Orange (6-Pack) | Outdoor | UL Listed | Weatherproof | 600V Rated in the Wire Connectors department at Lowes.com
3M Scotchlok 804 IDC Tap Connector with Sealant | Waytek
Direct Bury Splice Kits - DBRY - 3M - Par West Turf
3M Performance Plus Wire Connector, Flexible Steel Spring Connectors, 22-8 AWG, Tan and Red Color (T/R+), Bag of 100: Terminals: Amazon.com: Industrial & Scientific
Scotchlok® 3M- Gel-filled 314 Waterproof Connector - Valves Direct