Carrier EF33CW271 Gas Valve, 24V

The Carrier EF33CW271 is a 24 V gas valve for natural gas with the regulator set to 3.5 in. WC. It opens when the furnace control calls for heat and closes when the call ends or a safety circuit opens, and the built-in regulator holds the manifold pressure the burners are rated for. This is a genuine Carrier replacement part.

Confirm that your furnace's parts list calls for EF33CW271 and that the appliance runs on natural gas before ordering, since the regulator setting and gas type must match the equipment.