18-4 Thermostat Wire 300′ Roll

Product Overview

Professional-grade 18 AWG 4-conductor thermostat wire on a convenient 300-foot spool. This multi-conductor cable is designed for HVAC control wiring, thermostat installations, and low-voltage applications. Features color-coded conductors for easy identification and proper connections.

Key Features

• 18 AWG Gauge – Optimal size for thermostat and control wiring
• 4 Conductors – Supports standard heating/cooling applications
• 300 Feet Length – Full spool for multiple installations
• Color-Coded Wires – Red, White, Green, and Yellow for easy identification
• Solid Copper Conductors – Ensures reliable signal transmission
• PVC Jacketed – Durable outer jacket protects against damage
• UL Listed – Meets safety standards for HVAC applications
• Temperature Rated – Suitable for indoor and outdoor installations
• Low Voltage Design – Safe for 24VAC thermostat systems
• Sunlight Resistant – Can be used in exposed outdoor runs

Technical Specifications

Common Wire Color Functions

Ideal For

• New thermostat installations
• Replacing damaged thermostat wiring
• Basic heating and cooling systems
• Single-stage HVAC equipment connections
• Zone control system wiring
• Low-voltage control circuits
• Residential HVAC applications
• Light commercial installations

Professional installation recommended. This thermostat wire meets all industry standards for HVAC control wiring. Always follow local electrical codes and manufacturer specifications for proper installation.