A.O. Smith

A.O. Smith® TW-12-5 Series Expansion Tank, 4.8 gal, 150 psi, 10.6" Dia x 13.7" H, 5 Year Warranty

AOSTW125 MFG #: TW-12-5
A.O. Smith® TW-12-5 Series Expansion Tank, 4.8 gal, 150 psi, 10.6" Dia x 13.7" H, 5 Year Warranty
  • Acceptance Volume: 2.19 gal
  • Diameter: 10.6 in
  • Height: 13.7 in
  • Pressure Rating: 150 psi
  • Type: Potable
  • Connection Size: 3/4 in
  • Connection Type: MNPT
  • Manufacturer: A.O. Smith
  • Manufacturer #: TW-12-5
  • Material: Drawn Steel
  • Maximum Temperature: 200 degF
Many of today’s water systems require backflow prevention. This seals off the system and requires the use of an expansion tank, or the relief valve can discharge on every heating cycle. TW Series tanks eliminate wasting water and provide a smooth operating system, and assure long trouble-free service.

Looking for model-specific repair or replacement parts? Enter the unit’s serial number into the A.O. Smith Parts Finder.