50 Feet Mini Split Line Set with 1/4 Inch and 3/8 Inch O.D. Copper Pipes Tubing

● 1/4"&3/8"1/2" O.D. pure copper pipes for superior thermal conductivity
● With better tensile strength it withstands high pressure
● Embossed polyethylene film heat-resistant foam and thickened cotton for 3-layer insulation
● The film provides a robust barrier against environmental factors
● Heat-resistant foam protects against heat loss
● Thickened insulating cotton adds an extra layer of protection
● Achieve M1 flame-retardant and provide excellent thermal and sound insulation
● It complies with ASTM standing strong at temperatures as low as -40 ℉
● Compatible with different split air conditioners (not included)
● Simply unfold cut and solder the pipes for easy connection
● Serve as extension pipes
● 2 removable protective caps are included