Constructed from lightweight, durable corrosion-resistant aluminum with stainless-steel lever and fitted with an easy-to-read pressure indicator, the heavy-duty valve assembly is made for years of service.
Unbranded Plumbers Edge 30 Expansion Tank
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.
