Armstrong Aquastat 110123-121



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Armstrong aquastat P/N 110123-121 for 3/4" copper water pipe.

Designed to turn circulating pump on and off according to water temperature.

Pump switches off at 105 degrees F and on at 85 degress F (plus or minus 5 degrees).

Contact rating 10 amp 120 volt, 5 amp 230 volt.

Used with Armstrong Astro series pumps for domestic hot water recirculation.

Shipping rate for continental United States.



  • Model: 110123-121
  • Manufactured by: Armstrong
  • UPC:

Manufacturer Info

About Us

Welcome to Shortys Pumps, a division of HVAC Supplies. We are located on the South West side of Indianapolis, IN. Our purpose is to provide Original Equipment Manufacturer parts for the repair and maintenance upkeep of furnaces, air conditioners, ventilation systems and pumps to the general public as well as contractors and commercial building maintenance staff.

Give us a call with the information from your equipment nameplate and we will do our best to help you locate the right paty. We can be reached at our local phone number 317-821-8770, Toll Free 877-821-8770 or by fax at 317-821-8772. Our business hours are 8-5 EST M-F. Prior to making repairs please check your manufacturers instructions and follow all safety precautions. Improper repairs can lead to equipment damage or personal injury or death. If you are unsure of your ability please call a professional to service your equipment.




Company Name

Shortys Pumps, division of Shortys HVAC Supplies


7720 S Mooresville RD
West Newton, IN
USA 46183

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Shortys Pumps, division of Shortys HVAC Supplies 2023