• G20-28-4 | G20284• Inner dimension: 20, Outer dimension: 28, Width: 4, Weight: 0,002, EAN: 4054364710477, Dust lip/Protective lip: With, Pressure resistance: Up to 0.5 bar max., Tension spring: Without, Version: Rubber coating, Material: NBR (Perbunan), Temperature range: -30 to +110 °C