2 Stage Regulator. It efficiently regulates pressure from a propane cylinder to your appliance. This versatile regulator is compatible with any low-pressure propane appliance rated up to 200,000 BTU per hour. It combines a high-pressure first-stage regulator and a low-pressure second-stage regulator into a single unit, offering a more economical solution compared to installing two separate regulators. Please note that a hose is required to connect the regulator to your appliance, but it is not included.