Charge bladder, diaphragm, and piston accumulators with this complete kit. It includes a charging and gauging manifold, manual relief valve, pressure gauge, 10-ft. charging hose with CGA 580 fitting, and carrying case. The manual relief valve lets you precisely bleed off pressure for accurate precharge settings. The included gauge reads up to 3,000 psi to cover most accumulator types. A replacement gas chuck is available separately to minimize downtime if the original wears.