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Koopman Lumber - Sharon

G12L Water Heater Expansion Tank, 4.4 Gal, 3/4 In

SKU #4034971 Model #G-12W UPC #014045465960
Water Worker G12L Water Heater Expansion Tank, 4.4 Gal, 3/4 In

Water Worker

Regular Price
$ 79.99 EA
Koopman Lumber - Sharon Sharon, MA
Available at 3 other locations
  • 6 available for special order at
  • 6 available for special order at
  • 6 available for special order at
Key Features
AI Generated
  • Absorbs pressure spikes, reducing stress on the heating system.
  • Local HVAC specialists in Whitinsville trust its 200 °F rating at Koopman Lumber, MA.
  • The tank’s design accommodates both electric and gas water heaters.
  • Quality assured by a reputable manufacturer with industry experience.
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Available for Special Order. Pickup In store in 3-8 days.

Description

AI Robot
Descriptions are AI-generated. For accurate measurements, please call the store to confirm.

A Water Worker expansion tank safely controls pressure buildup and fluctuations during water heater operation. As water heats, it expands; this tank absorbs that expanded water, eliminating the hazards of relief valve discharge, water hammer, and fixture damage while saving water and energy. Plumbing codes and all major water heater brands now require installation of an expansion tank in any closed piping system.

The G12L is engineered to protect both electric and gas water heating systems from harmful pressure spikes. Its durable stainless steel construction resists corrosion and delivers long-term reliability in demanding water heater environments. The compact 15-inch-tall, 11.5-inch-wide footprint fits easily into utility closets and tight spaces without crowding other plumbing components.

Features and Benefits

  • Pressure Control: Maintains optimal working pressure, reducing stress on pipes, valves, and water heater equipment.
  • Universal Compatibility: Works with both electric and gas water heaters, making it a versatile addition to any plumbing system.
  • Stainless Steel Construction: Corrosion-resistant material ensures reliable performance and extended equipment lifespan.
  • Water and Energy Savings: Absorbing expanded water eliminates unnecessary relief valve discharge, reducing water waste and energy costs.
  • Space-Saving Design: Slim profile prevents installation conflicts in confined utility areas.
  • Trusted Brand: Water Worker is known for quality and dependable plumbing products.

Specifications

  • Brand: Water Worker
  • Model: G12L
  • Capacity: 4.4 gallons
  • Connection Size: 3/4 inch
  • Material: Stainless steel
  • Height: 15 inches
  • Width: 11.5 inches