Lower handle effort reduces operator fatigue Fully serviceable High-strength beam and pump linkage for long life Pumping handle included on all models Safety relief valve to prevent overload Automatic by-pass port to prevent over-extension Wiper seal for extended life Thick base material with large area for increased strength and stability during lifting Lower handle effort reduces operator fatigue Fully serviceable High-strength beam and pump linkage for long life Pumping handle included on all models Safety relief valve to prevent overload Automatic by-pass port to prevent over-extension Wiper seal for extended life Thick base material with large area for increased strength and stability during lifting Positioning handle on 20 ton through 50 ton models.