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Watts Potable Water Expansion Tank, 3/4 In Male Connection, Tank Volume 4.5 Gallons

SKU: 0067371

$217.50

List Price

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Product Details

Watts 0067371

This potable water expansion tank is used on gas, oil, or electric, direct-fired, residential water heater and hot water storage tank applications to absorb the increased volume of water created by thermal expansion. It also maintains balanced pressure throughout the water supply system by keeping system pressure below the T and P relief valve setting. This field-adjustable steel tank is air pre-charged at 20 psi, volume 4.5 gallons, designed with an FDA-approved polypropylene liner and Butyl rubber diaphragm, copper-lined steel, and 3/4'' male inlet connection. An expansion membrane prevents air-to-water contact in the tank ensuring a long system life. IAPMO listed and ANSI/NSF 61 certified. The maximum pressure is 150 psi (10 bar).


  • UPC 098268095753
  • Online Product ID 3631957
  • Diameter 10.5"
  • Weight 9.1 lbs.
  • Air Precharge 20 psi
  • Inlet Connection Size 0.75''
  • Inlet Connection Size Metric 20 mm
  • Inlet Connection Type Male Threaded
  • Lead Free yes
  • Maximum Operating Temperature Deg F 200
  • Maximum Working Pressure Psi 150
  • Mount Type Pipe
  • Series PLT
  • Tank Acceptance 3.42 gal
  • Tank Height 13.5''
  • Tank Material Steel
  • Tank Volume 4.5 gal

Additional information

  • Air pre-charge at 20 psi
  • Prevents over-pressure caused by thermal expansion
  • 3/4'' male connection
  • Butyl rubber diaphragm

About This Brand

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