25 ft mini split line set delivers a clean, insulated connection between indoor and outdoor HVAC units for stable cooling and heating performance. Dual copper tubing (1/4 in liquid + 3/8 in suction) plus triple-layer insulation helps reduce energy loss and protects the lines from moisture and wear. Built for quick, no-weld installs, it includes the accessories needed to route, seal, and finish your mini split line run.

Whether you’re replacing old AC refrigerant lines or installing a new mini split, this insulated copper line set helps you finish the job with a neat, protected run and fewer last-minute supply runs. The dual high/low pressure pipes are pre-sized for common mini split configurations, while the included cable and finishing parts streamline wall pass-throughs and cleanup. Check your unit’s required line size and route length before ordering, then grab yours today and get your installation moving.