Features Easy for Reading: This regulator is equipped with a 0‑180Psi dial gauge, making it easy to adjust pressure values. The Interface Parameters: The air conditioner has 4 holes, 3pcs 1/4in holes, and a 1/8in instrument port, which ensures firm connection. Simple Adjustment: The air pressure regulator has a plastic adjustment knob that allows for smooth flow settings, very efficient. Better Control: The air compressor pressure regulator provides accurate gas flow regulation and accurate measurement of gas. Easy to Install: Comes with a compact size and a light weight as well, the compressor pressure controller is very convenient to install within minutes. 1. Easy for Reading: This regulator is equipped with a 0‑180Psi dial gauge, making it easy to adjust pressure values. 2. The Interface Parameters: The air conditioner has 4 holes, 3pcs 1/4in holes, and a 1/8in instrument port, which ensures firm connection. 3. Simple Adjustment: The air pressure regulator has a plastic adjustment knob that allows for smooth flow settings, very efficient. 4. Better Control: The air compressor pressure regulator provides accurate gas flow regulation and accurate measurement of gas. 5. Easy to Install: Comes with a compact size and a light weight as well, the compressor pressure controller is very convenient to install within minutes. Specification: Item Type: Air Compressor Regulator Material: Cast Iron Pressure Range: 0-180 PSI Package List: 1 x Pressure Regulating Valve 1 x Pressure Gauge 1 x Dual Joint Connector 1 x JP Male Connector 1 x JP Female Connector 1 x Ball Valve 1 x Tape 1 x Plug 1 x Hex Wrench Package List 1 x Pressure Regulating Valve 1 x Pressure Gauge 1 x Dual Joint Connector 1 x JP Male Connector 1 x JP Female Connector 1 x Ball Valve 1 x Tape 1 x Plug 1 x Hex Wrench