Linesets, Inc. is a leading U.S. manufacturer of high-quality HVAC line sets, delivering precision, consistency, and reliability nationwide. We specialize in custom-built solutions, including tailored lengths, insulation options, flared or unflared ends, and integrated control wiring—designed to streamline installation and enhance system performance. With durable protective packaging, fast turnaround, and unmatched craftsmanship. Linesets, Inc. provides dependable products engineered to arrive jobsite-ready and built to perform in every environment.