Tangye supports and supplies Hydrapak pumps, Hydraclaw, Hydramite, and Hydralite hydraulic jacks. Tangye pumps are ideal when no power source is available. Hydrapak pumps are incredibly convenient as a backup system. Check out the entire Tangye product line here: https://www.hi-press.co.uk/tangye-hydraulic-equipment/tangye-hydrapak-hydrauilc-pumps/