Inhouse product
Size: 1/2 inch (12.7 mm OD)
Thickness: 0.030" (0.76 mm)
Type: Soft annealed copper (flexible)
Standard: ASTM B280 (AC copper tube)
Coil length: usually 15 meters
✔ 0.030" is standard/heavy thickness used in HVAC
✔ Stronger than 0.028" → better for pressure & durability