The updated UL Listings for Champion Fiberglass Duct® and Champion Fiberglass Haz Duct® conduits reflect extended support spacing distances, giving engineers another proof point when specifying Champion Fiberglass conduit. Underwriters Laboratory has conducted independent testing that validates the strength and rigidity of our extended support spacing distances, which are by now comparable to those of  GRC and PVC-coated steel. By utilizing Champion Fiberglass to meet the requirements of a rigid conduit system, users also enjoy the advantages of lower costs and superior performance.

Updated UL Listing for Extended Support Spacing Distances Comparable to GRC

Recent Blogs
Jan 23, 2026
Electrical Conduit System Comparison: Fiberglass vs. Steel

By Scott Patchan From metal to PVC to fiberglass (RTRC), the electrical conduit market offers numerous material options. Each electrical…

Jan 22, 2026
Meet Inside Sales Representative Paul Jimenez

He’s got deep experience across the electrical industry working for manufacturers, rep agencies and distributors. He enjoys spending time with…

Jan 16, 2026
Rep Ambassador: ESU’s Justin Weber on the Benefits of Fiberglass Conduit, Collaboration

Meet Justin Weber, a sales representative with Electric Sales Unlimited (ESU). Justin works with companies across the Southwestern United States,…