Bullet Point ★【Premium AC Copper Tubes】 - Made of seamless pure copper coil + 3 Layer heat insulated foam + flaring & standard nuts. - The package also comes with 3 rolls 36FT tube taps,which can wrap 30 ft ac copper tubes(each roll can wrap 10ft of ac tube. ★【Low & High-Pressure Pipe】 - This line set for mini split includes low & high-pressure tubes with different diameters: 1/4" & 3/8" (6 mm & 10 mm). Tubes can hold pressure up to 135 psi. - 0.02"+0.02" Thickened Copper Tube: Corrosion-resistant, no leaks, non-broken - 0.32" - 0.4" Thickened Foam Layer: Heat insulation, anti-freezing, shock absorption, anti-aging ★【Easy To Installation】 - Mini split line set includes quick-connect (Flare Copper Nut Fittings) ends & electric wire & drain hose & wrapping bands & wall sleeve cover & sealing mud for an easy installation; - Features a plastic dust cap on each ends, to keep clean during installation. ★【Widely Compatible Types】 - This ac line set is compatible with Universal Series heat pump systems;mini-split air conditioner or air conditioning system requiring 1/4" & 3/8" setting (Please kindly check your system to confirm the size) Pipe Material: Copper Pipe Length: 25 ft Pipe OD: 1/4" & 3/8" Copper Pipe Thickness: 0.02"+0.02"/0.5 mm+0.5 mm Insulated Cotton Thickness: 0.32" - 0.4"（8 mm-10 mm） Control Wire Length:25 ft Drain Hose Length:23 ft Pressure Bearing Capacity: 135psi Suitable Mini Split Capacity: Max.9000 BTU Features of Copper: Corrosion-resistant, no leaks, non-broken Features of Foam Layer: Heat insulation, anti-freezing, shock absorption, anti-aging The Ends of Tubes: Flared Package 1 x 25ft 1/4" & 3/8" Insulated Copper Coil Line Set 1 x 25ft Power Wire 1 x 23ft Drain Hose 3 x Wrapping Bands 1 x Wall Sleeve Cover