BudgetHeating sells a wide variety of copper lines, fittings, rubber rubatex insulation, and supply items for air conditioning and refrigeration work both residential and commercial. Items include: copper line sets 25', 50', 100' (liquid and suction lines with matching rubatex), 3/8",3/4",7/8", 1 & 1/8", 1 & 3/8", 5/8" copper tubing rolls, copper fittings kit, rubatex rubber insulation 1/4", 1/2", 3/4", 1" insulation thickness, mini split or ductless ac copper line sets, and much more!