Klein Tools UR IDC Connector for UR 19-26 AWG VDV826-605 - The Home Depot
Low Voltage Wire Connector Quick Wire Splice Connector 3 Way T Tap Solderless Wi | eBay
18-14 AWG Wire Quick Splice Connector for rapid splicing of wires
Brightfour Low Voltage Wire splice connectors - Pack of 12 Quick Solderless T Tap Connector 1 Pin,Rock Solid Connector for 24-20 AWG Cable for Vehicle/audio/video/Lighting and Automotive Uses - Amazon.com
RS PRO T-Tap Wire Splice Connector, Blue, Insulated 18 → 14 AWG - RS Components Indonesia
UR Butt Splice, 3 Wire Connector, Gel Filled, 100 pack - WT-UR