Heavy-Duty Hydraulic Control Valve, 2 Spools, 21 GPM, Adjustable Relief Handle. Equipped with 2 spools and G1/2 type inlet/outlet ports. Maximum pressure of 3600 PSI and maximum flow of 21 GPM. Ideal for small tractors, tractor loaders, log diverters, and other machinery. All slide valves feature spring return for easy reset to neutral position with slight shaking. Designed for double-acting cylinders for enhanced convenience and practicality. Incorporates a parallel oil circuit for manual control; compatible with other hydraulic components. Constructed with a durable cast iron ...