visad/src/main/java/ucar/nc2/iosp/mcidas/McIDASLookup.java
public final String getLevelUnit(GridRecord gr) {
    if (cust != null) {
      String result = cust.getLevelUnits( gr.getLevelType1());
      if (result != null) return result;
    }

    return visad.jmet.MetUnits.makeSymbol(((McIDASGridRecord) gr).getLevelUnitName());
  }
public final String getLevelUnit(GridRecord gr) {
    if (cust != null) {
      String result = cust.getLevelUnits( gr.getLevelType1());
      if (result != null) return result;
    }

    return visad.jmet.MetUnits.makeSymbol(((McIDASGridRecord) gr).getLevelUnitName());
  }
gets the LevelUnit.