Spring center to neutral all spools. Fit for small tractors, tractors loaders, log splitters, and etc. Package Includes: 1 x 1 spool 21GPM hydraulic directional control valve Specification: This hydraulic directional control valve comes with 1 spool and SAE 10 inlet and 12 outlet ports and SAE 10 work ports Working Range: The valve range can reach up to 3600PSI and the maximum flow is up to 21GPM Materials: Durable cast iron construction for long-time use Design: 4 Way 3 Places, spring center to neutral all spools Applicability: The compact design is suitable for the use in small tractors, tractors loaders, log splitters, light loading machines, etc.