- Extra Hydros spool for more line options on the water
- Hydros I for line weights 1-3; 4.7 oz., 3.1" in diameter
- Hydros II for line weights 3-5; 5 oz., 3.4" in diameter
- Hydros III for line weights 5-7; 5.5 oz., 3.7" in diameter
- Hydros IV for line weights 7-9; 6.6 oz., 4" in diameter
- Hydros V for line weights 9-11; 7.7 oz., 4.25" in diameter