Similar in size and weight to a standard bicycle pump, Bogert's Aviation's HX Strut Pump is designed for high pressure output. It is a portable hand pump that pressurizes landing gear struts.
The HX strut pump boost air or nitrogen to 1000psi. Simply hook up the output hose to the strut and the inlet hose to an air compressor, spare tire, portable air tank or 12 volt tire inflator. For real back country use it even works with a bicycle tire pump.
Very portable. No air compressor needed! 10 lbs (5Kg) shipping weight.