![Koenig Expander Series MB 600 push type sealing plug for drilled holes](https://www.koenigexpander.co.uk/wp-content/uploads/2024/01/MB-600.png)
Series MB 600 Expander
Sleeve: Stainless Steel 1.4305.
Ball: Stainless Steel 1.4301
Pressure: Up to 450 Bar (6,5000 psi)
![Koenig Expander Series MB 600 INCH push type hole sealing plug](https://www.koenigexpander.co.uk/wp-content/uploads/2024/01/MB-600-INCH.png)
Series MB 600 Inch Expander
Sleeve: Stainless Steel 1.4305
Ball: Stainless Steel 1.4301
Pressure: Up to 450 Bar (6,500 psi)
![Koenig Expander Series MB 850 push type sealing plug](https://www.koenigexpander.co.uk/wp-content/uploads/2024/01/MB-850.png)
Series MB 850 Expander
Sleeve: Case Hardened Steel Zinc Plated, Thick Coat Passivated, CR (VI)-Free
Ball: Bearing Steel, Heat Treated
Pressure: Up to 350 Bar (5,000 psi)
![Koenig Expander Series MB 700 push type sealing plug](https://www.koenigexpander.co.uk/wp-content/uploads/2024/01/MB-700.png)
Series MB 700 Expander
Sleeve: Stainless Steel DIN 1.4305
Ball: Bearing Steel, Heat treated
Pressure: Up to 450 Bar (6,500 psi)