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Home Plumbing Rough Plumbing Supplies Pumps (Well) Pump Tanks G5L WATER HEATER EXPANSION TANK

G5L WATER HEATER EXPANSION TANK

PART 371191
SUPPLIER AMTROL/WATER WORKER
SUPPLIER PART # G5L
RANK C
SHELF PACK 1
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About this item

G5L Water Heater Expansion Tank

The G5L Water Heater Expansion Tank is designed to protect closed-loop water heating systems from excess pressure caused by thermal expansion. As water heats and expands, pressure can build within the plumbing system. The G5L expansion tank helps absorb this increased volume, reducing stress on the water heater, valves, pipes, and fixtures.

Constructed for dependable performance, the G5L features a sealed internal bladder that separates air and water, allowing the tank to cushion pressure fluctuations efficiently. Its compact design supports easy installation in residential and light commercial plumbing systems while helping extend the service life of water heaters and connected components. The G5L Water Heater Expansion Tank is an essential component for maintaining system safety, stability, and long-term reliability.

Key Features

  • Designed to manage thermal expansion in water heating systems
  • Helps reduce excess pressure and protect system components
  • Sealed bladder design separates air and water for consistent performance
  • Compact size for easy installation near the water heater
  • Durable construction for long service life
  • Suitable for residential and light commercial applications

Specifications

  • Model Number: G5L
  • Product Type: Water Heater Expansion Tank
  • System Type: Closed-loop potable water systems
  • Tank Design: Internal bladder
  • Mounting Type: Inline or supported installation
  • Material: Steel tank with corrosion-resistant finish
  • Application Environment: Indoor plumbing systems

Applications

  • Residential water heater systems
  • Closed plumbing systems requiring expansion control
  • Replacement expansion tanks
  • New water heater installations
  • Light commercial water heating applications

Product Benefits

The G5L Water Heater Expansion Tank provides an effective solution for controlling pressure increases caused by heated water expansion. By maintaining balanced system pressure, it helps prevent premature wear on water heaters, pressure relief valves, and plumbing components. Its compact design and reliable internal construction make it a practical, long-term addition to any closed water heating system.

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Brand Water Worker
Brand Amtrol Water Worker
Pressure Rating 150 psi
Diameter 8.5 in
Height 15 in
Material Steel
Port Size 3/4 in MNPT
Weight 6.0 lb
UPC Code 000815900083
Shelf Pack 1
Minimum Order Qty 1
Supplier Name Amtrol/Water Worker
Supplier Short Name Amtrol/Wat
Supplier Address 1 PO Box 633
Supplier City Lincolnton
Supplier State NC
Supplier Zip 28093
Country US
Supplier Email jimlailandassoc@bellsouth.net
Supplier Url www.amtrol.com
Buyer Name Michael Heck
Supplier Phone (704) 732-4057
Supplier Fax (704) 732-4059
Our Customer Id 89437
Return Policy Return to Factory
Product Lines Pre Charged Well Tanks
Rep Name Jim Lail
Rep Phone (704) 732-4057
Rep Fax (704) 732-4059
Rep Email jimlailandassoc@bellsouth.net
Rep Agency Jim Lail and Associates