EF Aqr compared with Granada models for the observed masses calculated with different mixing length parameters (see Table 10). Primary component (filled cicles, upper left part of diagram): Case 1: full line, case 2: dashed line, case 3: dotted line. Secondary component (open circles, lower right part of diagram): case 4: full line and case 5: dashed line. The circles on the evolutionary tracks mark ages of 0.5, 1, 1.5, 2, and 2.5 Gyr.