Skip to content
Free Local Pickup Ship to Your Hometown Store
Pro & Contractor Accounts Apply for Net Terms
100,000+ Products Trusted American Hardware Brands

Southwire 250 ft. 18/7 Solid Copper Thermostat Wire

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Enhance your wiring projects with Southwire 250 ft. 18/7 Solid Copper Thermostat Wire, designed for reliable performance and exceptional conductivity.
Southwire MPN 64170444
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

Typical Store Price i
Typical store price: low $0.99, average $0.99
In-Store Exclusive

This one's worth the trip to the store.

Brands like Weber, Milwaukee, Yeti, and DeWalt restrict where their products can be sold online — and for good reason. In-store buyers get authentic products, full manufacturer warranty, and access to pricing that simply isn't allowed to be advertised on the web.

  • Authorized dealer network · Full manufacturer warranty & support
  • Guaranteed authentic · No counterfeits, no gray-market resellers
  • The brands set these standards · Be wary of sellers who don't follow them
Why isn't this online? The whole story →
Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

About Product Overview

Upgrade your wiring projects with the Southwire 250 ft. 18/7 Solid Copper Thermostat Wire, expertly designed to meet your residential and commercial needs. This top-of-the-line wire is perfect for thermostat installations, ensuring reliable performance and durability.

Crafted from high-quality solid copper, the Southwire 250 ft. 18/7 Solid Copper Thermostat Wire offers exceptional conductivity, making it ideal for a variety of applications. Here are some key features:

  • Amp Rating: Rated for optimal performance, this wire can handle the demands of most thermostat systems.
  • Conductor Gauge: With an 18-gauge size, you can trust that this wire is robust yet flexible enough for easy installations.
  • Direct Burial: Designed for outdoor use, the wire is durable enough to withstand the elements, making it perfect for direct burial applications.
  • Flame Retardant: Safety is paramount; this wire meets stringent safety standards to reduce fire hazards.
  • Insulation and Jacket Material: Made with thermoplastic, the insulation ensures protection against abrasion and environmental factors.

Whether you're a professional electrician or a DIY enthusiast, the Southwire 250 ft. 18/7 Solid Copper Thermostat Wire is your go-to choice for reliable wiring solutions. Don’t compromise on quality—ensure your projects are completed with the best materials available.

Ready to elevate your wiring game? Order your Southwire 250 ft. 18/7 Solid Copper Thermostat Wire today!

The Details Specifications

Brand Southwire
SKU 33300
UPC 032886438608
Unit 0
Case Pack Quantity 2 per case
Retail Unit Quantity 250
Unit of Measure 250 SO
Dimensions (L × W × H) 7 × 7 × 6
Weight 11 lbs
Cubic Feet 0.17401 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare