1 Spool. 4-way spool is used to control a double-acting cylinder or bi-rotational motor. 4-way motor spool allows a cylinder to float in the neutral position or motor to free wheel. 3-way spool is used to control a single-acting cylinder or a unidirectional motor. All feature an adjustable ball spring relief and load check. Max: 20 GPM, 3000 PSI. Relief setting: 1500 PSI @12 GPM. Complete handle assembly included.