Carry handles for portability. Titanium Aluminium Alloy body for light weight, corrosion resistance and high strength for all models except GP-121, GP-123, GP-462 and GP-464. Professional choice for wide range of industrial applications. Large oil capacities to power a wide range of cylinders and tools. Two speed pumps provide fast pumping to meet the load of tools & cylinders. Internal pressure relief valve for overload protection.