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Actual product may vary from photos.
The Amtrol 444 has been discontinued.
Please call us for a suitable alternate product.

(800) 865-5931

Mon-Fri 8am-7pm, Sat 9am-3pm CT

The water that is used initially to fill a hot water heating system contains dissolved air. Make-up water added at a later time will similarly have a high air content. Heating this water releases the air and permits it to be circulated in the system, which must be vented. The purpose of an Air Purger is to continuously separate and collect any air from the water as it circulates so that it may be vented automatically by a float air vent without the necessity for frequent manual venting.

Standard Features:

  • Installed horizontally on main as close to boiler as possible
  • Tappings for installation of air vents

Connection Type
NPT (Threaded)
Cast Iron
Connection Diameter
1 1/4 Inches

In 2002 Alpine Home Air Products became the first company to sell heating, air conditioning and indoor air-quality products online. We have proudly served hundreds of thousands of customers, helping them save time and money by buying their products direct.