• W12-30-7 BASL | W12307BASL• Inner dimension: 12, Outer dimension: 30, Width: 7, Weight: 0,01, Pressure resistance: Up to 0.5 bar max., Dust lip/Protective lip: With, Tension spring: Non-alloy steel, Material: NBR (Perbunan), Temperature range: -30 to +100 °C, Version: Rubber coating