DNF 1000 Pack Copper Butt Connectors Red Vinyl Insulated PCV 22-18 Gauge

I'll use these Universal crimpers to demonstrate the procedure to connect to number-14 wires using a butt splice if you use better quality but splices odds are good that you'll have a quality splice you can find better quality but splices at a local electrical supply house the insulated ones are color coded but there's not a standard used by all manufacturers red is usually 20 to 218 gauge wire but sometimes 16 gauge wires is accepted blue is usually 16 to 14 gauge wire though sometimes 18 gauge wire is accepted yellow is usually 12 to 10 gauge wire though 14 gauge wire is also sometimes accepted the wire gauges that are compatible with the connector are often printed on it some are insulated in have each shrink on the ends and some are not insulated there are more expensive crimping tools this one costs about 50 dollars the ratcheting type can cost hundreds of dollars often manufacture