PARKAIR Silicone Tube

ID mm: 12.5 ID Ins: 1/2 Pressure: 6

ID mm: 4 Wall Thickness mm: 2 OD mm: 8

ID mm: 8 Wall Thickness mm: 2.4 OD mm: 12.8

ID mm: 9 Wall Thickness mm: 2 OD mm: 13