GE Zoneline PM77X001 WATER EXP TANK 2.1 GALLON
The expansion tank provides a space for this extra water volume, preventing damage to the system, reducing pressure on plumbing lines, and helping to maintain consistent water pressure throughout a property.
Part #179010
The GE PM77X001 is a 2.1-gallon hot water heater expansion tank designed to manage excess pressure in residential plumbing systems.
This expansion tank is a crucial component for closed water systems (those with a backflow preventer or pressure-reducing valve) to absorb the excess water volume created during the heating process.
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- Prevent damage to the plumbing system and water heater.
- Reduce pressure on plumbing lines and maintain consistent water pressure.
- Enhance system performance, longevity, and overall energy efficiency.Â
The tank uses compressed air and a butyl rubber diaphragm to accept and expel the changing volume of water as it heats and cools
Attribute Detail Brand GE Appliances Product Type Water Heater Expansion Tank Model Number PM77X001Capacity 2.1 gallons (8 liters) Connection Size 3/4-inch male pipe thread (MNPT) Factory Pre-charged Pressure 40 PSI (adjustable up to 80 PSI) Maximum Working Pressure 80 PSI (some sources indicate 150 PSI) Maximum Operating Temperature 200°F Dimensions (H x L x W) 13.39 in x 8.46 in x 8.46 in Weight 5.31 lbs Safety Certification UPC certified Application Residential potable water systems - Brand: GE Zoneline