Ashland Water Group SK400 Heat Shrink Wire Splice Kit

Product Description

The ASHLAND WATER GROUP SK400 is a 4-wire heat shrink splice kit designed to create a self-sealing, leak-proof connection on submersible pump wiring. The kit includes butt connectors and pre-loaded heat shrink tubing that, when activated, forms a watertight seal around the splice. Compatible with 14, 12, and 10 gauge wire, it covers the most common conductor sizes found in residential and light commercial well pump installations. Plumbers, well pump technicians, and licensed electricians use this kit to make below-grade or in-well splices that resist moisture intrusion and maintain circuit integrity over time.

The SK400 is suited for submersible well pump wiring applications where a reliable, waterproof splice is required. It is appropriate for use in new pump installations and service replacements where the supply cable must be extended or spliced at the pump head. The self-sealing design reduces the risk of water infiltration that can cause insulation breakdown or ground faults in submerged or buried conductors.

Key Features

• Self-sealing heat shrink construction forms a leak-proof waterproof splice
• Compatible with 14, 12, and 10 gauge wire for broad application coverage
• Butt connectors included — no additional hardware required
• 4-wire kit covers the full conductor count typical of 3-phase or multi-wire submersible pump leads
• Packaged individually (sold as each) with 12-unit package quantity available

Compatibility

Designed as an OEM-style splice solution for submersible well pump wiring using 14, 12, or 10 gauge conductors in residential and light commercial well pump installations.

Installation Notes

Installation should be performed by a licensed electrician or qualified pump service technician in accordance with applicable NEC requirements for wet and submerged locations. De-energize the pump circuit at the breaker and verify zero voltage before making any wire connections. Apply heat evenly around the shrink tubing using a heat gun until the adhesive liner flows and the sleeve fully contracts — do not use an open flame. Confirm the splice is fully sealed before lowering the pump assembly into the well casing.

Technical Specifications

• Wire Gauge Compatibility: 14, 12, 10 AWG
• Number of Wires: 4
• Includes: Heat shrink sleeves and butt connectors
• Unit of Measure: Each
• Package Quantity: 12
• Weight: 0.69 pounds

Standard Information

• Brand: ASHLAND WATER GROUP
• Manufacturer Part Number: SK400