1-1/8" Insulated Copper Coil Line - 1/2" Black Insulation - 25' Long

R 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" - 6518 PSI 3/8" - 4223 PSI 1/2" - 3119 PSI 5/8" - 2579 PSI 3/4" - 2981 PSI 7/8" - 3397 PSI 1-1/8" - 2334 PSI