Delafield Corporation integrates Parker Hydraulic Cartridges in engineered and manufactured hydraulic products. Parker Hydraulic Cartridges are designed to exceed the most demanding of applications. Operating Temperature to 400 FWide range of fluid compatibilityBore Sizes: 1.50 through 8.00; rod diameters 1.000 through 5.500Stainless steel springs loads both dynamic and static piston seal lipsManufacturer warranty