ET-RA

ASME Pressurized Expansion Tanks

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

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 (see literature section above) 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