Insulated copper piping are compliant to American Standards and European Standards and are used in R22, R410A refrigerants
They come in different thicknesses (6 mm, 9 mm, 13 mm, 19 mm)
COPPER/ALUMINIUM INSULATION 1/4
COPPER/ALUMINIUM INSULATION 3/8
COPPER/ALUMINIUM INSULATION 1/2
COPPER/ALUMINIUM INSULATION 5/8
INSULATED COPPER 1/4 13mm
INSULATED COPPER 3/8 13mm
INSULATED COPPER 1/2 13mm
INSULATED COPPER 5/8 13mm
INSULATED COPPER 3/4 13mm
INSULATED COPPER 7/8 13mm
INSULATED COPPER 1/4
INSULATED COPPER 3/8
INSULATED COPPER 1/2
INSULATED COPPER 5/8
INSULATED COPPER 3/4
INSULATED COPPER 7/8