Top 10 Expansion Tanks for Reliable Performance

Discover the best expansion tank options to enhance your plumbing systems with efficiency and reliability, tailored for every need in construction.
Top 10 Expansion Tanks for Reliable Performance

Top Quick Picks For You

Best Bang for Your Buck

Eastman Mini Expansion Tank

Eastman Mini Expansion Tank

The Eastman 2-Gallon Mini Thermal Expansion Tank offers great value with its durable construction and versatility, making it a compelling choice for budget-conscious buyers.

Best for Homeowners

Eastman Expansion Tank

Eastman Expansion Tank

The Eastman 60022 Expansion Tank is designed specifically for residential use, providing reliable protection against pressure build-ups for water heaters, making it ideal for homeowners.

Best for Commercial Use

Watts ETX-30

Watts ETX-30

The Watts ETX-30 Non-Potable Water Expansion Tank is designed for high-demand commercial applications, featuring durable construction and ease of installation suitable for long-term use.

Best for Durability

Amtrol Extrol

Amtrol Extrol

The AMTROL 102-1#30 EX-30 Expansion Tank is built with a thick, heavy duty diaphragm and strong steel construction, ensuring long service life and resilience for tough environments.

Best Expansion Tank

In the intricate dance of plumbing and home comfort, the expansion tank plays a silent yet pivotal role, ensuring your water system flows seamlessly. When temperatures rise and pressure builds, this unsung hero valiantly absorbs the surge, safeguarding your pipes and appliances from unwelcome stress. Join us as we explore the finest options on the market, helping you make an informed choice to enhance your building’s resilience and efficiency.

Best Bang for Your Buck: Eastman Mini Expansion Tank

Eastman 2-Gallon Mini Thermal Expansion Tank, Stainless Steel Hammer Arrestor with 1/2 Inch Threaded Connection, 60008
GoodNot So Good
Durable stainless steelDifficult pressure adjustment
Versatile installation optionsLimited capacity
Compact designRequires additional fittings

We’re excited to introduce the Eastman 2-Gallon Mini Thermal Expansion Tank, our top pick for "Best Bang for Your Buck" !

This tank is a stalwart guardian for your tankless water heater, expertly designed to absorb pressure spikes and prevent those dreaded leaks .

Crafted from durable 304 stainless steel, it promises longevity, whether indoors or outdoors .

The versatile 1/2-inch MIP threaded connection offers flexible installation options, allowing for easy mounting in any orientation .

While it has a compact design and max pressure of 150 psi, be aware that pressure adjustment can be a bit tricky .

All in all, it’s a fantastic choice for budget-conscious homeowners!

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Price history for Eastman Mini Expansion Tank on Amazon

Best for Homeowners: Eastman Expansion Tank

Eastman 60022 60022/DET-5 2 Gallon Expansion Tank, White
GoodNot So Good
Reliable protectionLimited capacity options
High durabilityWall mounting required
Easy installationNot for outdoor use

When it comes to safeguarding your home, the Eastman 60022 Expansion Tank stands out as our top pick for homeowners .

Engineered with precision, this 2-gallon thermal expansion tank tackles pressure build-ups effectively, ensuring your water heater stays safe and functional .

Made from high-quality alloy steel and featuring a durable butyl rubber diaphragm, it promises longevity and reliability .

With dimensions of 12.4 inches by 8.3 inches, it fits perfectly for water heaters and boilers ranging from 30 to 50 gallons .

Installation is a breeze, though keep in mind it requires wall mounting .

For homeowners seeking peace of mind, the Eastman 60022 is a clever choice!

Be sure to also check out the best sealing tapes for more options! Also, here is the price history so you know exactly when to buy!

Price history for Eastman Expansion Tank on Amazon

Best for Commercial Use: Watts ETX-30

Watts ETX-30 Non-Potable Water Carbon Steel Expansion Tank for Closed Loop Hydronic Heating System Piping, 1/2" MNPT Connection, Tank Volume 4.7 Gallons, Maximum Pressure 75 psi
GoodNot So Good
High pressure capacityLimited color options
Durable constructionMay require frequent checks
Easy installationPotential for bladder failure

We absolutely love the Watts ETX-30 Non-Potable Water Expansion Tank for its robust performance in commercial settings .

With its generous 4.5-gallon volume, this tank seamlessly controls thermal expansion in hydronic heating systems .

Its high-quality carbon steel construction and epoxy finish ensure it stands the test of time, while the versatile mounting options make installation a breeze .

Plus, with a pre-charged capacity of 12 psi, it effectively manages system pressure without breaking a sweat .

Sure, it has limited color choices and may need periodic checks, but when it comes to durability and efficiency, this tank truly shines .

Your heating system deserves the best!

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Price history for Watts ETX-30 on Amazon

Best for Durability: Amtrol Extrol

AMTROL 102-1#30 EX-30 30 Extrol Expansion Tank
GoodNot So Good
Easy installationLimited warranty information
Durable diaphragmPotential shipping delays
Cost-effective solutionNo batteries included

When it comes to durability, the AMTROL 102-1#30 EX-30 Expansion Tank truly stands out !

With its thick, heavy-duty Butyl/EPDM diaphragm, this tank promises a long service life, making it perfect for even the toughest environments .

We appreciate the watertight reservoir, designed for expanded water, ensuring everything stays contained and efficient .

Its strong, deep-drawn steel construction not only enhances durability but also provides a sleek look .

Installation is a breeze too !

While the warranty details may be a bit vague, this cost-effective solution has earned a solid reputation among users .

Overall, it's a top-notch choice for your needs!

Be sure to also check out the best mechanics work light for more options! Also, here is the price history so you know exactly when to buy!

Price history for Amtrol Extrol on Amazon

Flexcon PH5

PH5 FLEX2PRO Thermal Expansion Tank - 2.1 Gallon
GoodNot So Good
Easy to installNo batteries included
Corrosion-resistant materialsOnly 2.1-gallon capacity
Cost-effective solutionRequires careful installation

We’re excited to shine a spotlight on the Flexcon PH Expansion Tank !

This little powerhouse boasts a 100% butyl diaphragm and a plastic liner, ensuring your system water stays separate from its air precharge—talk about smart design !

With a corrosion-resistant stainless steel nipple, it outshines many competitors on durability .

Plus, the appliance quality paint finish keeps it looking sleek for years .

At 2.1 gallons, it’s compact but performs like a champ .

Just a heads-up: while it’s easy to install, you’ll need to be precise .

Overall, this tank is a cost-effective solution—perfect for your maintenance arsenal!

Be sure to also check out the best exterior limestone sealer for more options! Also, here is the price history so you know exactly when to buy!

Price history for Flexcon PH5 on Amazon

HPS Thermal Expansion Tank

2.1 Gallon Thermal Expansion Tank, 304 Grade Stainless Steel 3/4" MNPT Connection, Butyl Rubber Diaphragm, Prevent hot Water from backflowing into The Cold Water Pipe line
GoodNot So Good
Trusted by professionalsPotential warranty issues
Premium quality materialsFaulty bladder reported
Easy to installPackaging concerns

When it comes to finding the best expansion tank, we believe the Easyflex Thermal Expansion Tank stands out in the crowd. Trusted by plumbing pros, this tank is built from heavy-duty cold rolled steel and features a 100% butyl rubber diaphragm, ensuring long-term durability .

We appreciate its effortless installation, making setup a breeze, especially with the optional mounting bracket available .

With capacities of 2.1 and 4.5 gallons, it suits various water heater models perfectly .

Plus, it effectively manages pressure, helping avoid costly repairs .

Just remember to check the warranty details, as some users have raised concerns .

Overall, a solid choice for your plumbing needs!

Be sure to also check out the best electrical tape for more options! Also, here is the price history so you know exactly when to buy!

Price history for HPS Thermal Expansion Tank on Amazon

Easyflex EF-TET-2 Expansion Tank

Easyflex EF-TET-2 Stainless Steel Thermal Expansion Tank, 3/4" MIP Connection, 2 gal
GoodNot So Good
Durable butyl rubber diaphragmLimited size options
Corrosion-resistant stainless steelMay require additional tools
Adjustable pre-charged pressureHigher price point

Easyflex Expansion Tank Review

We’re excited to introduce the Easyflex Expansion Tank, a robust champion in the industry .

With a 100% heavy-duty butyl rubber diaphragm, this tank promises durability and long-lasting performance .

Its stainless steel connection minimizes corrosion, ensuring reliability over time .

The 16-gauge solid steel shell and high-quality urethane paint coating provide extra protection, making it an excellent choice for tough environments .

Plus, the field-adjustable pre-charged pressure gives you the flexibility to customize based on your needs .

While it comes at a higher price point and may require additional tools, the overall quality makes it a worthy investment for any project.

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Price history for Easyflex EF-TET-2 on Amazon

Amtrol

AMTROL ST-5 Thermal Expansion Tank
GoodNot So Good
Quality buildNo pressure gauge
Easy installationSmall air volume
Cost-effective solutionInstallation challenges

When it comes to finding the best expansion tank for your plumbing needs, we can confidently recommend the AMTROL ST-5 .

This impressive unit is built from durable metal and proudly made in the USA .

It effortlessly accepts expanded water due to thermal changes, ensuring your system stays balanced. Say goodbye to annoying dripping faucets and pressure relief valve discharges—this tank efficiently returns water when hot water is used, protecting your water heater, appliances, and fixtures .

The compact design makes installation a breeze, although keep in mind it lacks a pressure gauge .

Overall, it’s a cost-effective choice for any homeowner!

Be sure to also check out the best air ratchet for more options! Also, here is the price history so you know exactly when to buy!

Price history for Amtrol on Amazon

Pro Water Parts Accumulator Tank

2 Gallon Accumulator Expansion Tank With Wall Mount Bracket 1/2" Female NPT
GoodNot So Good
Easy installationSmaller size may limit use
Reduces pump cyclingRequires precise pressure adjustments
High quality constructionPrice may be higher than competitors

When we set out to find the best expansion tank, the Pro Water Parts 2 Gallon model certainly made an impression !

Its 1/2" female NPT connection and included custom wall brackets ensure that installation is a breeze .

It’s designed to handle up to 130 PSI, perfect for residential water heating systems .

We love how it effectively reduces pump cycling and boasts high-quality construction, making it a reliable choice .

However, keep in mind its smaller size and the need for precise pressure adjustments, which may be a slight drawback .

Overall, it’s a strong contender if you prioritize efficiency and durability!

Be sure to also check out the best hvac backpack for more options! Also, here is the price history so you know exactly when to buy!

Price history for Pro Water Parts Accumulator Tank on Amazon

Eastman Tee Expansion Tank

Eastman 3/4 Inch Brass Swivel Expansion Tank Tee, Fits 2-10 Gallon Tanks, 26090Z
GoodNot So Good
Easy installationPotential leak issues
Durable lead-free brassNon-compliance with codes
Suitable for various tank sizesRequires specific mounting

When it comes to choosing the best expansion tank tee, we highly recommend the Eastman 3/4 inch model .

Its swivel design allows for versatile installation, whether you're working vertically or horizontally .

Crafted from lead-free brass, this tee minimizes potential leak points—an absolute must for any reliable water system .

It’s compatible with tanks ranging from 2 to 10 gallons, making it perfect for various setups .

Plus, with a robust capacity of up to 200 PSI, you can count on its durability even in demanding conditions .

Just be mindful of installation specifics, and you’ll enjoy hassle-free performance!

Be sure to also check out the best anti-slip tape for more options! Also, here is the price history so you know exactly when to buy!

Price history for Eastman Tee on Amazon

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