K2 Systems 4000723 Crossrail 48-X 172"

K2 Systems CrossRail 48-X 172" Mill Finish (4000723)

The K2 Systems 4000723 is a 172-inch (14.33 ft) mill-finish structural aluminum rail engineered for pitched-roof residential and commercial solar installations. As a core component of the K2 rail system, this crossrail 48-x profile provides high-strength module support designed to accommodate longer spans between roof attachments, reducing overall roof penetrations and installation labor.

Manufactured from 6000-series structural aluminum with a durable mill finish, this 14.33-foot K2 solar racking rail offers maximum span capability and long-term corrosion resistance, with US-manufactured Mill (4000819-US) and Dark Anodized (4000820-US) versions available for domestic content builds. The k2 crossrail design integrates directly with K2 clamps, hardware, and roof attachments, providing a reliable k2 racking solar backbone that maintains structural stability while simplifying site assembly.

Specifications:

• Model/Type: 4000723
• Finish: Mill
• Included Hardware: CrossRail 48-X aluminum mounting rail
• Heavy-Duty Structural Span: Engineered as K2's most popular K2 rail solar profile to support long spans and reduce roof penetration count.
• UL 2703 Certified Safety: Fully listed for electrical bonding and fire safety compliance across diverse pitched roof solar designs.
• 6000-Series Structural Aluminum: Built to resist severe weather exposure, high winds, and heavy snow loads without warping.
• ASCE 7 Certified Load Ratings: Structural design tested and certified to comply with strict US building codes for wind and snow resistance.