WATTS®SKU: 1133528

WATTS® 0066606 ETX Pressurized Non-Potable Water Expansion Tank

$62.76
In stock (1019)

This non-potable water expansion tank is engineered for commercial and residential closed-loop hydronic heating systems to manage thermal expansion of hot water and keep system pressure below the relief valve’s threshold. Constructed from carbon steel with an epoxy coating, it holds 4.5 gallons and comes pre-charged at 12 psi. The durable butyl diaphragm separates water from air, reducing air loss and extending system life. It mounts directly to supply piping, featuring a 1/2 inch MNPT connection and a standard tire valve charging port. The tank’s maximum operating pressure is 75 psi (5.3 bar).

Shipping policy

Orders placed by 2:00pm EST will ship same day. All orders ship via UPS/USPS/Fedex Ground.

More Details

Product overview
  • Minimizes loss of the air change and ensures long and trouble-free life for the system
  • Rugged flexible butyl diaphragm
  • Compatible with glycol in systems
  • Mounts to supply piping
  • 4.7 Gallon capacity
  • Controls the thermal expansion of hot water and maintains system pressure
  • Maximum pressure 60 psi
Specifications
Manufacturer Part Number 0066606
UPC 98268219357
Overall Dimensions n/a
Material n/a
Domestic or Import Import
End Style n/a
Type Pressurized Non-Potable
ADA Compliance n/a
Warning n/a
Standards and Approvals ASSE Listed | FM Approved | NSF Approved | UL Listed | ULC Listed | USC Certified | WQA Certified
Resources
Delivery & Returns

Orders will ship same day if received by 2pm EST. We ship ground via USPS, UPS, and Fedex from our warehouse in CT. We do not offer expedited shipping at this time.

All returns are inspected on receipt; credit is issued after condition is confirmed. Credit is issued only for items returned in original, saleable condition after inspection.

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