
Review grade
Eastman 60022 60022/DET-5 2 Gallon Expansion Tank, White
- ASIN: B005E83YW4
- Customer Reviews: 4.7 4.7 out of 5 stars 558 ratings 4.7 out of 5 stars
- Best Sellers Rank: #48,392 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #91 in Water Heaters
- Date First Available: September 30, 2011
Eastman 60022 60022/DET-5 2 Gallon Expansion Tank Review
As part of our top 5 list, the Eastman 60022 60022/DET-5 2 Gallon Expansion Tank stands out for its exceptional quality and reliable performance in the realm of water heaters and boilers. Let's delve deeper into why this product has secured its spot among the best in its category.
Performance Metrics and Design
The Eastman expansion tank, with a 2-gallon capacity, boasts dimensions of 12.4-inches x 8.3-inches, making it suitable for water heaters and boilers ranging from 30 to 50 gallons. Its factory precharged setting of 40 psi, adjustable to match varying water pressures, ensures efficient operation. Crafted with a high-quality butyl rubber diaphragm and 304-stainless steel fittings, durability is a hallmark of this product.
Differentiation from Competitors
What sets the Eastman expansion tank apart from competitors is its focus on reliable protection against backflow and pressure build-ups that can compromise the integrity of water heaters. The brand's commitment to quality and safety is evident in the meticulous design and construction of this expansion tank.
Evolution and Decision-Making Factors
Over the years, Eastman has refined its expansion tank to meet the evolving needs of consumers. The incorporation of advanced materials and precision engineering reflects the brand's dedication to innovation and customer satisfaction. When considering an expansion tank, factors such as durability, performance, and ease of installation are pivotal in the decision-making process.
Alternatives and Suitability
- Alternative 1: Brand X Expansion Tank - Suitable for smaller water heating systems.
- Alternative 2: Brand Y Expansion Tank - Ideal for larger capacity boilers.
While alternatives exist in the market, the Eastman expansion tank shines for its versatility and compatibility with a wide range of water heaters and boilers, making it a top choice for homeowners and professionals alike.
Pros
- Reliable protection to prevent hot water backflow and pressure build-ups
- Durable construction with high-quality materials for long-lasting performance
- Factory precharged at 40 psi, adjustable to match water pressure
- Backed by years of experience in manufacturing plumbing products
- Designed for water heaters and boilers with a capacity of 30-50 gallons
Cons
- May not be suitable for water heaters or boilers with capacities below 30 gallons
- Limited color options available (only white color)

Review grade
Watts Water Technologies GIDDS-1030401 Non-Potable Water Expansion Tank, 2.1 Gallon, Gray
- Brand: Watts
- Color: Gray
- Material: Stainless Steel
- Product Dimensions: 8"L x 8"W x 11"H
- Capacity: 2.1 Gallons
Watts Water Technologies GIDDS-1030401 Non-Potable Water Expansion Tank Review
When it comes to ensuring the longevity and efficiency of your water heating system, the Watts Water Technologies GIDDS-1030401 Non-Potable Water Expansion Tank stands out as a reliable and essential component. This expansion tank, with a capacity of 2.1 gallons, is designed to address the increased volume of water resulting from thermal expansion in gas, oil, or electric water heaters. Let's delve into why this product has secured a spot in our top 5 list.
Performance Metrics
- Pre-charged at 20 psi, the carbon steel tank with a durable expansion membrane effectively absorbs excess water volume, ensuring a trouble-free system operation.
- The copper-lined steel construction with an epoxy finish not only enhances durability but also prevents corrosion, making it ideal for both residential and commercial applications.
- With a maximum pressure rating of 150 psi, this expansion tank guarantees reliable performance even in demanding hydronic heating systems.
Key Features and Differentiators
What sets the Watts Water Technologies GIDDS-1030401 Expansion Tank apart from its competitors is its innovative design and robust build quality. Unlike traditional expansion tanks, this model features a 3/4-inch MNPT system connection and a .302-32 inch charging valve connection for convenient on-site charging, eliminating the need for additional tools or accessories.
Evolution and Improvements
Compared to previous versions, this expansion tank boasts enhanced efficiency and longevity due to its improved expansion membrane and advanced materials. The incorporation of a copper lining and epoxy finish not only adds to its aesthetic appeal but also reinforces its resistance to wear and tear over time.
Decision-Making Factors
When considering an expansion tank for your water heating system, factors such as durability, pressure rating, and ease of maintenance play a crucial role. The Watts GIDDS-1030401 Expansion Tank excels in all these aspects, making it a reliable choice for homeowners and businesses alike.
Alternatives and Suitability
While there are alternative expansion tanks available on the market, few can match the performance and versatility offered by the Watts GIDDS-1030401 model. Whether you require a tank for a residential water heater or a commercial heating system, this expansion tank proves to be a versatile and dependable solution.
In conclusion, the Watts Water Technologies GIDDS-1030401 Non-Potable Water Expansion Tank is a standout product that combines durability, performance, and innovation. Its ability to efficiently manage thermal expansion, coupled with its user-friendly design, makes it a top choice for those seeking a reliable solution for their water heating systems.
Specifications
Brand: | Watts |
Color: | Gray |
Material: | Stainless Steel |
Product Dimensions: | 8"L x 8"W x 11"H |
Capacity: | 2.1 Gallons |
Item Weight: | 0.01 Ounces, 0.01 ounces |
Shape: | Cylindrical |
Manufacturer: | WATTS WATER TECHNOLOGIES |
ASIN: | B002JEODQW |
Item model number: | GIDDS-1030401 |
Customer Reviews: | 4.7 4.7 out of 5 stars 286 ratings 4.7 out of 5 stars |
Best Sellers Rank: | #64,583 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #78 in Water Heaters |
Is Discontinued By Manufacturer: | No |
Number of pieces: | 1 |
Batteries required: | No |
Included Components: | Expansion Tank |
Pros
- Durable expansion membrane ensures long and trouble-free life for the system
- Pre-charged carbon steel tank with a 2.1-gallon volume for efficient water expansion absorption
- Can be used in residential or commercial hydronic heating systems
- Mounts easily to supply piping with 3/4-inch MNPT system connection for convenience
- Maximum pressure of 150 psi for reliable performance
Cons
- Limited to a 2.1-gallon capacity, may not be suitable for larger water heating systems

Review grade
2 Gallon Accumulator Expansion Tank With Wall Mount Bracket 1/2" Female NPT
- Product Dimensions: 12 x 9 x 7 inches
- Item Weight: 5.3 pounds
- Manufacturer: Pro Water Parts
- ASIN: B00IRFW38W
- Item model number: 1ET2G12F
2 Gallon Accumulator Expansion Tank Review
The 2 Gallon Accumulator Expansion Tank with Wall Mount Bracket offers exceptional quality and functionality for residential water heating systems. This product has rightfully earned its place in our top 5 list due to its outstanding performance and innovative design.
Performance Metrics
- Max Liquid Pressure: 130 PSI
- Pre-Pressurized Air: 30 PSI
- Applications: Ideal for gas, oil, or electric water heaters
With a stellar customer rating of 4.7 out of 5 stars based on 217 reviews, this expansion tank proves to be a reliable choice for homeowners seeking efficiency and durability.
Differentiation from Competitors
What sets this expansion tank apart is its custom wall brackets, ensuring easy installation and stability. The 1/2" Female NPT fitting adds versatility, allowing compatibility with various water heating systems.
Alternatives and Suitability
While there are alternatives in the market, few match the quality and performance of the 2 Gallon Accumulator Expansion Tank. Its suitability for gas, oil, or electric water heaters makes it a versatile choice for different applications.
Evolution from Previous Versions
This latest model showcases improvements in design and functionality compared to its predecessors. The inclusion of wall mount brackets and enhanced pressure specifications demonstrate a commitment to meeting consumer needs effectively.
Decision-Making Factors
When considering an expansion tank for your water heating system, factors such as durability, ease of installation, and compatibility are crucial. The 2 Gallon Accumulator Expansion Tank excels in all these aspects, making it a top choice for homeowners.
Design Choices and User Experience
The thoughtful design of this expansion tank enhances user experience by simplifying installation and ensuring optimal performance. The 2-gallon capacity strikes a perfect balance between efficiency and space-saving, catering to the needs of modern households.
Specifications
Product Dimensions: | 12 x 9 x 7 inches |
Item Weight: | 5.3 pounds |
Manufacturer: | Pro Water Parts |
ASIN: | B00IRFW38W |
Item model number: | 1ET2G12F |
Customer Reviews: | 4.7 4.7 out of 5 stars 217 ratings 4.7 out of 5 stars |
Best Sellers Rank: | #31,825 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #30 in Water Heaters |
Date First Available: | March 19, 2017 |
Pros
- Custom wall brackets included for easy installation
- Suitable for gas, oil, or electric water heaters
- Helps absorb increased volume of water due to thermal expansion
Cons
- May not be suitable for larger water heating systems

Review grade
Potable Thermal Expansion Tank For Water Heater - 2.1 Gallon, 3/4 In MNPT Connection
- ASIN: B09N8TNBVN
- Customer Reviews: 4.6 4.6 out of 5 stars 40 ratings 4.6 out of 5 stars
- Best Sellers Rank: #64,984 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #79 in Water Heaters
- Date First Available: December 8, 2021
Potable Thermal Expansion Tank for Water Heater - A Top Choice
When it comes to efficient thermal expansion management in closed-loop heating or cooling systems, the Potable Thermal Expansion Tank for Water Heater stands out as a top-tier solution. With a generous 2.1-gallon capacity and a 3/4 inch MNPT connection, this expansion tank offers a blend of performance, durability, and ease of installation that has earned it a spot on our top 5 list.
Performance Metrics
- Capacity: 2.1 gallons, ideal for smaller heating or cooling systems.
- Connection: 3/4 inch MNPT connection for easy integration.
- Construction: 100% butyl diaphragm and plastic liner for optimal performance.
Differentiation from Competitors
The Potable Thermal Expansion Tank excels in its appliance-grade finish, which not only prevents external corrosion and rust but also adds an aesthetically pleasing look to the system. The 100% butyl diaphragm and plastic liner construction sets it apart from competitors, ensuring efficient thermal expansion management without compromising durability.
Alternatives and Suitability
While there are alternatives in the market, the 2.1-gallon capacity of this expansion tank makes it particularly suitable for smaller heating or cooling systems where space is a consideration. Larger systems may benefit from higher-capacity tanks, but for compact setups, this product offers an ideal balance of capacity and efficiency.
Evolution from Previous Versions
Compared to earlier models, the Potable Thermal Expansion Tank has evolved to feature a more robust construction with enhanced corrosion resistance and improved thermal expansion management capabilities. The appliance-quality finish and compact design make it a significant upgrade from its predecessors.
Decision-Making Factors
When considering an expansion tank for your heating or cooling system, key factors to keep in mind include capacity, construction quality, ease of installation, and thermal expansion management capabilities. The Potable Thermal Expansion Tank excels in all these aspects, making it a reliable choice for both professionals and DIY enthusiasts.
In conclusion, the Potable Thermal Expansion Tank for Water Heater - 2.1 Gallon, with its ample capacity, high-quality construction, and effective thermal expansion management, is a standout product that deserves its place among the top 5 in its category. Whether you're looking to upgrade your current system or install a new one, this expansion tank offers a winning combination of performance and durability.
Pros
- High-quality construction with 100% butyl diaphragm and plastic liner for optimal performance and durability
- Ample 2.1-gallon capacity suitable for smaller heating or cooling systems
- Effective thermal expansion management in closed-loop systems to prevent equipment damage
- Easy to install design ideal for both professional contractors and DIY enthusiasts
- Appliance-grade finish that enhances durability and provides an aesthetically pleasing look
Cons
- May not be suitable for larger heating or cooling systems requiring higher capacity tanks

Review grade
AMTROL EX-15 15 Extrol Expansion Tank
- ASIN: B003QSAH38
- Customer Reviews: 4.5 4.5 out of 5 stars 162 ratings 4.5 out of 5 stars
- Best Sellers Rank: #95,308 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #84 in Water Pump Accessories
- Date First Available: May 29, 2008
AMTROL EX-15 15 Extrol Expansion Tank Review
As we unveil the top 5 products in the realm of Tools & Home Improvement, the AMTROL EX-15 15 Extrol Expansion Tank stands out as a reliable and efficient choice for closed hydronic heating and cooling systems. Let's delve into what makes this expansion tank a worthy addition to our coveted list.
Performance Metrics
- 2-gallon capacity, ideal for moderate system requirements
- Factory precharge of 12 psig ensures quick installation
- Max. working pressure of 100 psig for robust performance
- Max. operating temperature of 240 degrees F for versatility
Key Features
The AMTROL EX-15 boasts a watertight reservoir that effectively manages expanded water, coupled with a thick Butyl/EPDM diaphragm for enhanced durability. Its design emphasizes longevity and functionality, making it a standout choice for heating and cooling systems.
Differentiation from Competitors
What sets the AMTROL EX-15 apart is its meticulous attention to detail in construction and performance. While competitors may offer similar products, the EX-15's balance of capacity, pressure tolerance, and temperature range positions it as a versatile and reliable solution.
Alternatives and Suitability
For those seeking a larger capacity, the Amtrol EX-30 could be a viable alternative. However, for applications requiring a 2-gallon capacity, the EX-15 excels in meeting the demands of closed hydronic systems with precision.
Evolution and Design Choices
Over the years, the AMTROL EX-15 has evolved to incorporate advanced materials and engineering techniques, enhancing its performance and longevity. The design choices reflect a commitment to quality and user satisfaction, making it a trusted choice among professionals.
In conclusion, the AMTROL EX-15 15 Extrol Expansion Tank exemplifies excellence in the realm of heating and cooling system accessories. Its robust features, reliable performance metrics, and thoughtful design make it a top contender in our curated list of top 5 products. When reliability and efficiency are paramount, the EX-15 delivers without compromise.
Pros
- Suitable for closed hydronic heating and cooling systems
- Watertight reservoir ensures expanded water containment
- Thick Butyl/EPDM diaphragm for enhanced durability
- Factory precharge of 12 psig for convenient installation
Cons
- Limited to 2-gallon capacity, may not be sufficient for larger systems
Ultimate Buyer's Guide for Expansion Tanks
Are you in the market for the best expansion vessel for your system? Look no further! This comprehensive buyer's guide will walk you through everything you need to know to make an informed decision.
Why You Need an Expansion Tank
Before diving into the features to look for in an expansion tank, let's understand why it's a crucial component for your system. Expansion tanks help regulate pressure fluctuations, prevent damage to your system, and ensure efficient operation.
Key Features to Consider
When choosing the best expansion vessel, consider the following key features:
- Size: Ensure the tank size matches your system's requirements for optimal performance.
- Material: Look for tanks made from durable materials like stainless steel or carbon steel for longevity.
- Pressure Rating: Check the tank's pressure rating to ensure it can handle your system's pressure levels.
- Installation: Opt for tanks that are easy to install and maintain for convenience.
- Certifications: Choose tanks that meet industry standards for quality and safety.
Choosing the Best Expansion Tank
Now that you know what to look for, how do you choose the best expansion tank for your needs? Consider factors such as your system's size, pressure requirements, and budget. Additionally, reading reviews and comparing different products can help you make an informed decision.
Remember, investing in a high-quality expansion tank is essential for the longevity and efficiency of your system. So, take your time, do your research, and select the one that best fits your requirements.
Frequently asked questions
An expansion tank is used to absorb the increased volume of water created by thermal expansion in water heaters and boilers.
An expansion tank prevents pressure build-ups by allowing expanded water caused by thermal expansion to return to the system when hot water is used.
The butyl diaphragm is used to separate the system water from the tank's air precharge in an expansion tank.
An expansion tank is essential for closed-loop heating or cooling systems to handle thermal expansion effectively and ensure smooth system operation.
Yes, an expansion tank can be used in both residential and commercial hydronic heating systems to absorb increased water volume and ensure system longevity.
Yes, an expansion tank is necessary for gas, oil, or electric water heaters to absorb the increased volume of water due to thermal expansion.
Author
Last update 06.05.2025
Cristian Oprea
Innovation, Automotive, Lifestyle