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Residential Storage & Pump Tanks

Residential Pump Storage Tanks

A. O. Smith’s residential pump tanks provide storage for additional water that’s available when you need it.
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2-Gallon In-line Diaphragm Pump Tank
2-Gallon In-line Diaphragm Pump Tank Model PMI-2 100
  • In-Line
  • 5 year limited warranty
View Model
5-Gallon In-line Diaphragm Pump Tank
5-Gallon In-line Diaphragm Pump Tank Model PMI-5 100
  • In-Line
  • 5 year limited warranty
View Model
14-Gallon In-line Diaphragm Pump Tank
14-Gallon In-line Diaphragm Pump Tank Model PMI-14 200
  • In-Line
  • 5 year limited warranty
View Model
7-Gallon In-line Diaphragm Pump Tank
7-Gallon In-line Diaphragm Pump Tank Model PMI-7 100
  • In-Line
  • 5 year limited warranty
View Model
20-Gallon Horizontal Diaphragm Pump Tank
20-Gallon Horizontal Diaphragm Pump Tank Model PMH-20 200
  • Horizontal
  • 5 year limited warranty
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14-Gallon Horizontal Diaphragm Pump Tank
14-Gallon Horizontal Diaphragm Pump Tank Model PMH-14 200
  • Horizontal
  • 5 year limited warranty
View Model
7-Gallon Horizontal Diaphragm Pump Tank
7-Gallon Horizontal Diaphragm Pump Tank Model PMH-7 200
  • Horizontal
  • 5 year limited warranty
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42-Gallon Glasslined Hydropneumatic Pump Tank
42-Gallon Glasslined Hydropneumatic Pump Tank Model SGS 42 1 100
  • Vertical
  • 5-Year Limited Warranty
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42-Gallon Glasslined Hydropneumatic Pump Tank
42-Gallon Glasslined Hydropneumatic Pump Tank Model SGT 42 1 100
  • Vertical
  • 5-Year Limited Warranty
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120-Gallon Glasslined Hydropneumatic Pump Tank
120-Gallon Glasslined Hydropneumatic Pump Tank Model SG 120 1 100
  • Vertical
  • 5-Year Limited Warranty
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82-Gallon Glasslined Hydropneumatic Pump Tank
82-Gallon Glasslined Hydropneumatic Pump Tank Model SG 82 1 100
  • Vertical
  • 5-Year Limited Warranty
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45-Gallon Free-Standing Diaphragm Pump Tank
45-Gallon Free-Standing Diaphragm Pump Tank Model PM-45 200
  • Free-Standing
  • 5 year limited warranty
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32-Gallon Free-Standing Diaphragm Pump Tank
32-Gallon Free-Standing Diaphragm Pump Tank Model PM-32 200
  • Free-Standing
  • 5 year limited warranty
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119-Gallon Free-Standing Diaphragm Pump Tank
119-Gallon Free-Standing Diaphragm Pump Tank Model PM-119 200
  • Free-Standing
  • 5 year limited warranty
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85-Gallon Free-Standing Diaphragm Pump Tank
85-Gallon Free-Standing Diaphragm Pump Tank Model PM-85 200
  • Free-Standing
  • 5 year limited warranty
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Tank lifespan depends on water quality, usage, and maintenance. Proper installation and regular inspections help extend the life of your system and catch potential issues early.
Pressure tank costs depend on the tank size, configuration type (free-standing, horizontal, or in-line), and warranty coverage. Installation costs vary based on your location, the condition of your existing house plumbing system, and whether any modifications are needed. Your installer can provide an accurate quote based on your specific needs.
Pressure tank replacement involves working with pressurized water systems, plumbing connections, and sometimes electrical components. Professional installation protects your warranty and makes sure the system is safe and functions correctly. Most local building codes also require that installations be permitted by a licensed professional.
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Local Pro

A. O. Smith water heaters are available through your local plumbing professional.
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