Ancor's heat shrink butt connectors are a great choice. These step-down connectors, available in 16-14/16-10, come in a pack of 25. Model 320225 features a 4:1 shrink ratio tubing for a watertight wire seal. The flared barrel with a uniform copper wall makes mechanical crimping easy and proper. There's a crimp indicator on the barrel for correct tool placement. The clear heat shrink tubing ensures accurate crimping. Colored stripes on the barrel show which crimp die to use. These connectors can step down from one gauge size or connect multiple wires of the same gauge. They're a sealed alternative to quick-taps or 3-way connectors in corrosion-prone areas.

Using these Ancor heat shrink butt connectors is easy. First, select the right crimp die according to the colored stripes on the barrel. Then place the wires into the connector. Use an installation tool and make sure it's properly placed with the help of the crimp indicator. After crimping, use a heat source to shrink the tubing. This will create a watertight seal. When handling these connectors, be careful not to over - crimp as it may damage the connector. For maintenance, keep them in a dry place to prevent corrosion. Check the connections periodically to ensure they're still secure.