Relaxweex Underground Wire Splice Kit – 600V Direct Burial UF, In-Wall Splice Kit for 14/3 to 8/3 AWG

Overview

Relaxweex Underground Wire Splice Kit is built for reliability in direct burial installations, supporting UF cables up to 600 volts. It is designed to work with cables from 14/3 to 8/3 AWG, making it a flexible choice for many outdoor and in-wall projects.

Whether you're repairing a damaged underground line or wiring a new outdoor feature, this kit provides a compact, all-in-one solution that travels easily from job to job.

What you get and why it matters

• 600 volts maximum rating; the package includes 1 set of splicing connectors and heat shrink tubing for direct burial projects
• Quality materials deliver long-lasting durability under outdoor use, such as lighting, pumps, and other UF cable installations

• Compact size fits a range of wire sizes from 14/3 to 8/3 UF cables, making it a versatile addition to any toolkit
• Four-position connector ensures a tight, reliable connection for each wire
• Heat shrink tube enables easy sealing after assembly for a neat, moisture-resistant finish

Durability and design you can count on

The connectors are crafted with enduring materials to resist weather and heavy outdoor use. The compact, portable format helps you carry and store the kit without bulk.

Easy installation and a clean seal

Following a simple sequence—strip insulation, insert wires, loosen screws, tighten—gives a secure connection. The included heat shrink sealing tube makes moisture-resistant sealing quick and straightforward.

Practical use cases

Perfect for direct burial of UF cable to outdoor lighting, pool equipment, or weather-exposed outlets. A versatile, ready-to-use solution that supports a variety of wiring tasks.