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ETX

Non-Potable Water Expansion Tanks, Pipe Mount and Free Standing

  • Models mount to supply piping or are free standing
  • Controls the thermal expansion of hot water and maintains system pressure
  • Minimizes loss of the air change and ensures long and trouble-free life for the system
  • For use in closed loop hydronic heating system piping

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific ETX

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA