While many Sensus regulator springs share physical dimensions

the 767A-357 is the direct replacement model for the older 767A-303 ignitor

OEM Standards: Manufactured to original equipment specifications for a exact drop-in fit

the setpoints shift to a 190°F cut-in and 170°F cut-out

This hot surface ignition (HSI) component is built to withstand high-stress environments

Robertshaw 9204H Thermostat While many Sensus regulator springsThe Robertshaw 9204H Thermostat is a technician grade 2 wire 24V mechanical control designed specifically for 1 stage heating applications. This horizontal mount unit serves as a versatile service truck staple, capable of replacing over 50 competitive models. Engineered for reliability in 24VAC gas, electric, and oil systems, it also offers full millivolt compatibility, making it a go to solution for floor furnaces and wall heaters. The 9204H