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Amtrol ST-5 Thermal Expansion Tank 2 Gallon

Part Number: ST-5
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Intended Use:

The Amtrol ST-5 2 Gallon Thermal Expansion Tank helps to control pressure build-up in closed, hot water systems. The ST-5 features a butyl diaphragm and a stainless steel system connection.

  • Butyl diaphragm
  • Eliminates wasted energy and water
  • 3/4" NPTM stainless steel connection
  • Max operation temperature: 200°F
  • Max working pressure: 150 psi
  • Pre-charged to 40 psi
Note: Be sure to measure the system water pressure using a water pressure gauge, and make sure that the air pressure in the thermal expansion tank is the same as the system pressure. The thermal expansion tank is pre-charged to 40 psi. Verify the charge of the tank using a tank pressure gauge.

California residents Prop 65 Warning
This product contains materials known to the State of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov