Amtrol

SUMMER BLOWOUT SALE
Save BIG on Fans, Air Conditioners & More
Offer Ends 06/09/25 Shop All Deals
Featured Categories
Boiler Expansion Tanks
Amtrol Boiler Expansion Tanks
Water Heater Expansion Tanks
Amtrol Water Heater Expansion Tanks
Indirect Water Heaters
Amtrol Indirect Water Heaters
Water Hammer Arrestors
Amtrol Water Hammer Arrestors
Local Pickup FAQ's
3/4" NPT Connection - 10.3 Gallons Max Acceptance
$219.00
Was $269.59
SAVE $50.59
In-Stock
Free Shipping
3/4" NPT Connection - 3.2 Gallons Max Acceptance
14% Buy This
$1,519.00
In-Stock
Free Shipping
2% Check Discount
Amtrol - EX-90 - 14 Gallon - In-Line Boiler System Expansion Tank - 1/2" NPT Connection - 11.3 Gallons Max Acceptance
11% Buy This
$225.00
In-Stock
Free Shipping
3/4" NPT Connection - 0.9 Gallons Max Acceptance
11% Buy This
$1,098.46
In-Stock
Free Shipping
2% Check Discount
Amtrol - EX-30 - 4.4 Gallon - In-Line Boiler System Expansion Tank - 1/2" NPT Connection - 2.5 Gallons Max Acceptance
8% Buy This
Amtrol - EX-3000-100 - 4.4 Gallon - In-Line Expansion Tank Combination Kit - With 1" Purger & Vent - 1" NPT Connection - 2.5 Gallons Max Acceptance
8% Buy This
Amtrol - EX-60 - 7.6 Gallon - In-Line Boiler System Expansion Tank - 1/2" NPT Connection - 2.5 Gallons Max Acceptance
6% Buy This
1-1/4" NPT Connection - 34 Gallons Max Acceptance
6% Buy This
$529.00
In-Stock
Free Shipping
3/4" NPT Connection - 11.3 Gallons Max Acceptance
6% Buy This
$1,784.00
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Amtrol - FT-110-125 - 4.4 Gallon - Expansion Tank & Fill Valve Combination Kit - With 1-1/4" Purger & Vent - 1/2" NPT Connection - 2.5 Gallons Max Acceptance
3% Buy This
3/4" NPT Connection - 0.9 Gallons Max Acceptance
3% Buy This
For Use With Amtrol 700 Series Automatic Air Vents and Amtrol Extrol
3% Buy This
Includes Mechanical Control.
3% Buy This
$1,823.90
In-Stock
Free Shipping & Lift Gate
2% Check Discount
Amtrol - EX-3000-125 - 4.4 Gallon - In-Line Expansion Tank Combination Kit - With 1-1/4" Purger & Vent - 1-1/4" NPT Connection - 2.5 Gallons Max Acceptance
3% Buy This
Amtrol - T-5 - 2 Gallon - In-Line Thermal Expansion Tank - 3/4" NPT Connection - 0.9 Gallons Max Acceptance
3% Buy This
Includes Digital Control.
3% Buy This
$3,310.00
Factory-Direct
Free Shipping & Lift Gate
2% Check Discount
For Use With Amtrol 700 Series Automatic Air Vents and Amtrol Extrol
3% Buy This
Amtrol - FT-110 - 4.4 Gallon - Expansion Tank & Fill Valve - 1/2" NPT Connection - 2.5 Gallons Max Acceptance
Amtrol - FT-110-100 - 4.4 Gallon - Expansion Tank & Fill Valve Combination Kit - With 1" Purger & Vent - 1/2" NPT Connection - 2.5 Gallons Max Acceptance
$390.00
In-Stock
Free Shipping
Amtrol - EX-15 - 2 Gallon - In-Line Boiler System Expansion Tank - 1/2" NPT Connection - 1 Gallons Max Acceptance
Amtrol - EX-1500-100 - 2 Gallon - In-Line Expansion Tank Combination Kit - With 1" Purger & Vent - 1" NPT Connection - 1 Gallons Max Acceptance
Displaying Products 1 - 24 (of 45)
Amtrol has been leading hydronics innovation since their invention of the pre-pressurized expansion tank in 1954. Their high quality water systems solutions suit a wide variety of residential, commercial, and industrial applications.