Durable Quality – This hydraulic directional control valve comes with 6 spool, with cast iron construction for long-time use. Easy to Use – Integrated manufacturing of valve body, compact size, convenient installation, and easy to use High-Efficiency – The relief valve range is up to 3625 PSI and the maximum flow is up to 21 GPM. Wide Application – Fit for small tractors, tractors loaders, log splitters, and etc.