(Flared finished, so you can install it as it is) ● For air conditioner piping; ● Inner layer material: high melting point type low density polyethylene (heat resistant up to 28°F) ● JIS A9511 (A-PE-C-2) compliant product; Outer layer material: low density polyethylene JIS A9511 (PE-C-P1) compliant product; Outer material: polyethylene film, embossed product; ● copper tube diameter: Φ6.35 (t0.8 x Φ9.52 (t0.8) Heat insulation material (thickness 0.8 mm) Flex nut (with cap) 1/4: 2 pieces Flex nut (with cap) 3/8: 2 pieces [Notes] ● Country of manufacture: China, detailed information, length (m): 3