Boilers operate at low pressure to prevent pressure from building when the water is heated. The system must have a place for this water to go that is the job if the expansion tank. Heated water pushes against the diaphragm pushes the water back into the system.
- Expansion tank for a hot-water heating system
- Not for use with domestic water heater
- Compatible with FLEXcon models
- 11-1/4 in. W x 11-1/4 in. H x 15-1/2 in. D
- Note: Product may vary by store.
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