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ET-RA

ASME Pressurized Expansion Tanks

  • ASME Section VIII removable bladder type precharged tank
  • Prevents tank corrosion and waterlogging problems
  • Available in a variety of models and sizes
  • Designed to absorb the expansion forces and control the pressure in heating and cooling systems

Select a Model

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

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