3/4" Insulated Copper Coil Line - 1/2" Black Insulation - 35' Long Insulated Line Set and the second number represents

and the second number represents the height

R Value Rating of Insulation - R3

Carefully Shrink Wrapped – With cardboard backing to prevent damage in shipment

All steel wire is applied between PET surfaces to prevent corrosion (oxidization)

Copper coil line set fits most ductless mini split air conditioners

3/4" Insulated Copper Coil Line - 1/2" Black Insulation - 35' Long Insulated Line Set and the second number representsR value rating of insulation r3. 3 Insulation density is 30kgs cbm = 0. 035 w mk Works for every air conditioning & refrigeration application including ductless mini split, heat pump and centralized air ducted units. Pressure rating: 2300 to 6500 psi, much more than the required 700 psi for r410 Our coils have a very high PSI burst pressure. Whilst the maximum pressure for R410 is 700 PSI, our coils offer from 2300 to 6500 PSI See chart below: 1 4"