1HVAC 50‑ft 3/8″ x 7/8″ Insulated Copper Line Set

Designed for residential HVAC split systems, this 50‑foot line set from 1HVAC connects the indoor air handler to the outdoor condenser with precision and durability. Each set includes a 3/8″ liquid line and a 7/8″ suction line, both measured in outer diameter to match standard valve sizes.

Constructed from 100% pure high‑quality copper, the tubing offers long‑term reliability under high pressure HVAC refrigerants such as R410A, R22, R32, and R454B. The lines are sealed for transport, protecting them from debris while remaining refrigerant‑free until installation.

Ideal for both air‑conditioning only and heat‑pump systems that use standard sweat or braze connections, the set can be shortened to fit exact run lengths or joined with additional sets for extended runs. It’s an economical, ready‑to‑install solution for any home HVAC upgrade.