A/C Refrig Coil, 5/16 ODX.032X50ft. Price For: Each Item: ACR Copper Tubing Material: Copper Copper Tube Coating: None Length: 50 ft. Outside Dia.: 5/16" Standards: ASTM B280 Wall Thickness: 0.032" Tube Size: 5/16" Temp. Range: 100 Degrees to 400 Degrees F Inside Dia.: 0.249" Application: Air Conditioning and Refrigeration Copper Tube Shape: Coil Soft/Hard: Soft Max. Pressure: 1197 psi Country of Origin (subject to change): United States