Sensus 121-12-2 Regulator R-410A the 381-800-476 vent damper kit

the 381-800-476 vent damper kit includes the required boiler wiring harness and internal motor for precise airflow regulation

05" wc to 2

always verify if the specific BTU load and local jurisdiction allow for vent-less installation

a higher VA rating is acceptable as it allows the transformer to handle more load without overheating

Replacing with a genuine 40L81 kit ensures long-term reliability and system safety

Sensus 121-12-2 Regulator R-410A the 381-800-476 vent damper kitThe Sensus 121 12 2 Regulator is a heavy duty 2 inch NPT gas pressure regulator engineered for high capacity commercial and industrial combustion systems. This standard spring loaded regulator features a rugged cast iron body designed to handle natural gas, LP vapor, and air with a maximum inlet pressure of 60 PSIG. Utilizing external sensing, the Sensus 121 12 2 provides superior gas pressure regulation and sensitivity, specifically configured with a