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Southwire 250 ft. 18/5 Solid Copper Sprinkler Wire

Southwire 250 ft. 18/5 Solid Copper Sprinkler Wire

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Keep your irrigation system performing reliably from controller to valve with the Southwire 250 ft. 18/5 Solid Copper Sprinkler Wire. Designed for outdoor, direct-burial use, this…

Southwire MPN 49275124
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
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About Product Overview

Keep your irrigation system performing reliably from controller to valve with the Southwire 250 ft. 18/5 Solid Copper Sprinkler Wire. Designed for outdoor, direct-burial use, this five-conductor cable delivers low-resistance, durable performance where it matters most in landscape and sprinkler setups.

  • Five 18 AWG solid copper conductors provide dependable, low-resistance paths for multiple valve circuits and quick, lasting electrical connections.
  • Direct burial rating means you can lay this cable underground without extra conduit in many installations, reducing installation time and material costs.
  • Flame retardant PVC insulation paired with a rugged outer jacket keeps the wiring safer in outdoor environments and helps meet safety standards.
  • UV-resistant black jacket stands up to sun exposure, maintaining flexibility and color integrity over years of outdoor use.
  • UL listed for reliability and safety, giving you confidence in installation and long-term performance.
  • Voltage rating of 150V and a 60°C temperature rating reflect suitability for typical low-voltage irrigation systems while tolerating outdoor temperatures and conditions.
  • 250 ft length minimizes splices along long runs, streamlining installation for larger yards and multiple zones.
  • Outdoor use with copper ground and a durable construction designed to withstand moisture and field wear in sprinkler applications.
  • Color: Black provides a discreet, professional appearance when buried or run along landscape features.

Ideal for connecting irrigation controllers to multiple valves, this sprinkler wire is purpose-built for landscape professionals and DIY homeowners tackling medium-to-large yard systems. Use it to route power and signaling between your controller and valves, across beds, and under mulch where visibility and durability matter most. Compared to lighter or stranded alternatives, this solid copper design offers robust mechanical strength and consistent performance over time, especially in buried, outdoor environments.

Practical tips for best results: plan your route to minimize length and avoid sharp bends, use appropriate direct-burial-rated connectors and protective conduit where required, and verify valve current requirements to prevent voltage drop. With Southwire’s 18/5 sprinkler wire, you gain a trusted, long-lasting foundation for a reliable irrigation system that keeps landscapes lush and system downtime to a minimum.

The Details Specifications

Brand Southwire
SKU 33651
UPC 032886465802
Unit 0
Case Pack Quantity 4 per case
Retail Unit Quantity 250
Unit of Measure 250 SO
Dimensions (L × W × H) 9 × 9 × 7
Weight 11 lbs
Cubic Feet 0.2364 ft³
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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