Amtrol 443 Hydronic Expansion Tank Air Purger

The Amtrol 443 Hydronic Expansion Tank Air Purger is engineered for efficient air removal in hydronic systems. This in-line air vent combines an air purger and an automatic float vent to help maintain optimal circulation, reduce noise, and extend system life in residential or commercial hydronic heating setups.

Designed for easy integration with a 1 inch nominal size and female threaded end connections, the unit fits compact spaces in expansion tanks and heating loops. Built with a durable cast iron body, it withstands demanding temperatures and pressure in everyday installations.

• In-Line design: Type In-Line with Female Threaded ends; 1 Inch nominal size for straightforward installation.
• Rugged construction: Cast iron body rated for 100 PSIG and up to 240 degrees Fahrenheit.
• Integrated air management: Air Purger plus Automatic Float Vent for continuous air removal.
• Compact footprint: End-to-end distance of 4 inches for tight spaces in hydronic heating systems.
• Certified quality: Suitable for expansion tanks and hydronic loops; IAPMO listed and ISO 9001/2008 compliant.

Keep your hydronic heating system running smoothly with reliable air elimination and long-term performance.