Manufacturer Name: Johnson Controls Product Number: T-4002-301 OEM Part Number: T-4002-301 Product Description: 2Pipewhitedastatw/Cvr&Conv.Kit Weight:1.65lbs/748.43g The Johnson Controls T-4002-301 is a pneumatic thermostat designed to regulate temperature in commercial and industrial buildings. It employs compressed air pressure to indicate a pneumatic valve or damper actuator... https://www.partshnc.com/2pipewhitedastatwcvrconvkit