While it is compatible with standard 24 VAC thermostats

What are the spark gap requirements for proper ignition

The Johnson Controls VG7000-1003 Spring Kit is a professional-grade repair solution specifically engineered for field mounting on VG7000 series bronze globe valves

Designed specifically for natural gas pool heaters

They are technically identical and interchangeable

Honeywell THM04R3000 Equipment Interface Module 318973-401 While it is compatible withThe Honeywell THM04R3000 Equipment Interface Module (EIM) is designed for use with T10+ smart thermostats, providing a reliable connection point between the thermostat and HVAC equipment. It is commonly used in applications where additional wiring flexibility is needed or when installing systems without a common wire at the thermostat location. This equipment interface module simplifies installation by relocating wiring connections from the thermostat