Free Shipping on orders over $599! Excluding HI & AK, and products requiring special shipping arrangements.

1-800-873-3507
8 am - 4:30 pm MST Mon - Fri
 
Sign-in

Solar Expansion Tanks

An expansion tank or expansion vessel is a small tank used to protect closed (not open to atmospheric pressure) water heating systems and domestic hot water systems from excessive pressure.

9 items
Category
Product Type
Price
Brand
Show
per page
Sort
Compare
 Add to cart
Zilmet 21.1 Gal Solar Plus Tank 1" NPT Connection
Zilmet has also developed a series of innovative and special expansion tanks for solar Energy systems.  The SOLAR line of tanks was developed…
SKU: ZSP80
Brand: Zilmet
$294.02 each
In Stock
Requires special handling
Eligible for FREE shipping
Compare
 Add to cart
Zilmet 13.2 Gal Solar Plus Tank 3/4" NPT Connection
Zilmet has also developed a series of innovative and special expansion tanks for solar Energy systems.  The SOLAR line of tanks was developed…
SKU: ZSP50
Brand: Zilmet
$229.71 each
In Stock
Requires special handling
Eligible for FREE shipping
Compare
 Add to cart
Zilmet 9.2 Gal Solar Plus Tank 3/4" NPT Connection
Zilmet has also developed a series of innovative and special expansion tanks for solar Energy systems.  The SOLAR line of tanks was developed…
SKU: ZSP35
Brand: Zilmet
$192.25 each
In Stock
Requires special handling
Eligible for FREE shipping
Compare
 Add to cart
Zilmet 6.6 Gal Solar Plus Tank 3/4" NPT Connection
Zilmet has also developed a series of innovative and special expansion tanks for solar Energy systems.  The SOLAR line of tanks was developed…
SKU: ZSP24
Brand: Zilmet
$125.58 each
In Stock
Requires special handling
Eligible for FREE shipping
Compare
 Add to cart
Zilmet 4.8 Gal Solar Plus Tank 3/4" NPT Connection
Zilmet has also developed a series of innovative and special expansion tanks for solar Energy systems.  The SOLAR line of tanks was developed…
SKU: ZSP18
Brand: Zilmet
$110.25 each
In Stock
Requires special handling
Eligible for FREE shipping
Compare
 Add to cart
Zilmet 3.2 Gal Solar Plus Tank 3/4" NPT Connection
Zilmet has also developed a series of innovative and special expansion tanks for solar Energy systems.  The SOLAR line of tanks was developed…
SKU: ZSP12
Brand: Zilmet
$82.69 each
In Stock
Requires special handling
Eligible for FREE shipping
Compare
 Add to cart
Viessmann 21.25 gallon expansion tank w/ mounting hardware
This vessel contains air, as well as water from the central heating system. As the water heats up in the central heating system, it expands within…
SKU: 7248 245
Brand: Viessmann
$524.19 each
In Stock
Requires special handling
Eligible for FREE shipping
Compare
 Add to cart
Duratrac 4.8 Gallon Backstop Solar Expansion Tank
4.8 gallon Solar expansion tank
SKU: 12-S30
$37.40 each
In Stock
Requires special handling
Eligible for FREE shipping
Compare
 Add to cart
2 Gallon Backstop Solar Expansion Tank
2 gallon Solar expansion tank
SKU: 12-S15
$56.00 each
In Stock
Requires special handling
Eligible for FREE shipping
We deliver energy savings, competitive pricing, unlimited hot water, more than 42 years of experience and free lifetime technical support
Contact us
8AM-4:30PM MST Monday-Friday
phone
info__address
5350 Joliet Street, Unit 1, Denver, CO 80239