1", Hydraulic Cylinder Control Block, For 1-1/2" To 2" Rods, Designed For Cylinder Rods, Constructed Of A High Grade, Heat Treated Aluminum Alloy, Which Makes It Extremely Durable, Installs & Removes In Seconds, Can Be Used On Hydraulic Or Air Operated Cylinders, 1" Band Width: 3,000 LB Maximum PSI, 250 Degrees Fahrenheit Maximum Temperature.