The Mueller 61280250 Line Set is engineered for dependable performance in both standard and mini-split HVAC systems. This line set includes a 3/8" liquid line and a 3/4" suction line, with a 3/8" insulation thickness, spanning 25 feet in length. The Duraguard UV™ coated elastomeric insulation is designed to withstand the harshest solar and weather conditions, providing superior durability and thermal protection. Manufactured with high-quality copper, this line set meets stringent industry standards, ensuring consistent and reliable operation in residential and commercial installations.