The Genie® Regulator Accessory Manifold consists of a Genie® Manifold with the following parts attached: pressure gauge, ball valve, and optional relief valve. It is designed to thread directly into any Genie® Membrane Probe Regulator™ or Genie® Regulator™ and provides a means to monitor regulator outlet pressure and block flow. It's straight-through sample flow path, minimal dead volume, and low internal volume make it Analytically Correct™ and help to preserve sample integrity. The optional relief valve is intended for the protection of the gauge only. The relief valve is not intended to protect any downstream equipment.