Specifications: - Dial Size: 1.5 inches - Pressure Range: 0 to 4000 PSI - Connection Type: 1/8" NPT (National Pipe Thread) - Mounting Style: Bottom mount - Material: Steel case - Application: Suitable for non-corrosive gas systems - Compatibility: Commonly used with Harris regulator models such as 25GX, 425, and 45 Typical Uses: - Replacement gauge for gas regulators in welding, HVAC, and industrial gas systems - Compatible with fuel gas and oxygen setups (depending on regulator model)