Current debate between electricians at my house: Does this need to be in a box? : r/electrical
TE Connectivity 20-Amps 300-Volt NEMA General-duty Straight Connector in the Plugs & Connectors department at Lowes.com
3-Wire Easy-Splice Block
NSi Industries Non-Metallic Cable Splice, 12 - 14 AWG, For 3 Conductor Cable with Ground NMS-3 - The Home Depot
TE Connectivity 20-Amp 300-Volt NEMA 2-wire General-duty Straight Connector, White at Lowes.com
Splicing NM Cable in Walls and Other Concealed Spaces | JADE Learning
In wall romex splice kits | Electrician Talk
Gardner Bender 14-8 Butt Splice Black in the Terminal Wire Connectors department at Lowes.com
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
NSI Tork NMS-3 :: Splice Kit, 12 - 14 AWG, 3 Conductor Cable With Ground :: PLATT ELECTRIC SUPPLY
Splicing NM Cable in Walls and Other Concealed Spaces | JADE Learning
COMPRESSION SPLICE KIT 3 WIRE - Albany, KY - Albany Plumbing and Electric Online