Quick view Hydac 2054186 Fps 250 F2.5 G4 K Hydac Technology - Hycon Division2054186 Hydac Accumulator Charging Kit, FPS 250 F2.5 G4 K. Gauge Pressure Range - 0 to 3500 PSI, 8 ft Charging Hose. For use with Gas Valve Version 4 (8VI-ISO 4570)... MSRP: $609.65 Was: Now: $507.94 Add to Cart