Our site works best with Javascript enabled.

Need Help? Call
MON-FRI 8:30am-5:00pm Central
fill-trol tank
Amtrol FILL-TROL 110
4.4 Gallon Bladder-Type Expansion Tank with Fill-Trol® Automatic Pressure Reducing Valve

Your Price:
Compare to:$117.99
You save:$29.00
See Shipping Cost

An expansion tank is a required component for all hot water boiler systems, and is designed to control system pressure and help reduce energy consumption of heating and circulating operations. These Amtrol expansion tanks are factory pre-charged and 100% tested to keep the diaphragm flush against the tank when the system is first filled with cold water. As the system water temperature increases, the expanded water is absorbed by the tank. As the system water temperature reaches its maximum, the diaphragm flexes against the air cushion to allow for the increased water expansion. These expansion tanks feature a Butyl/EPDM diaphragm for superior air retention, nine times better than natural rubber. 

The AMTROL FILL-TROL® system consists of a specially adapted EXTROL pre-pressurized, diaphragm-type expansion tank, and the FILL-TROL, a specially designed, automatic, pressure-reducing fill valve.

Standard Features

  • Pre-pressurized, diaphragm-type expansion tank with a standard charge of 12 PSI
  • Tanks are of welded-steel construction Extrol® Tanks
  • Hydronic heating systems and can be used in glycol systems
  • Recommend installing Extrol® into bottom of purger using a single 1/2" nipple for both pipe connection and mounting
  • Can be used in hot water heaters, hydronic heating systems and in glycol systems
  • Includes Fill-Trol®, automatic pressure reducing valve
  • Fully adjustable up to 100 PSIG maximum working pressure Therm-X-Trol® Tanks
  • Designed to accept increased water volume created when storage tank is heated, keeping system pressure below relief valve setting
  • System connection 3/4" brass
  • Listed by IAPMO, SBCCI and NSF61

Your Order
Ways to Order
See Order Status
Modify or Cancel Order
Missing Order Item
Damaged Shipments
Warranty Claims
View Quotes
Request Custom Equipment
Technical Support
Learning Center
Instruction Manuals
Contact Technical Support
Shipping Policy
Return Policy
Scratch-N-Dent Policy
Volume Discount Policy
Privacy Policy
Website Terms of Use
About Us
Customer Reviews
(800) 865-5931
Monday to Friday
8:30am - 5:00pm Central
  Mailing Address
1901 N. Clybourn Avenue
Suite 200
Chicago, IL 60614
[email protected]
or Contact Us Here
(425) 928-2455
© Copyright 2002-2014, Alpine Home Air Products. All Rights Reserved. A Todd Arthurs Company, Inc