A complete line new manual and automatic air vents, designed to remove troublesome air in a variety of hydronic systems, is available. The air vents come in 1/8-, 1/2-, and 3/4-inch connections. The ...

This automatic air vent eliminates the accumulation of troublesome trapped air in hydronic systems, says the company. The Number 400 vent is designed so that accumulated air allows the float to drop, ...