Taco Hy-Vent Automatic Air Vent, 1/8" NPT Float Style 150 PSI Max

Taco 400-4 Automatic Air Vent Hy-Vent
The Taco Hy-Vent® has become the industry standard for dependable long life service.
This high capacity float style vents can be placed either on the boiler or at the high points throughout the system.
the brass body, nickel plated vents meet the system requirements of even the largest installation. The vents are also easily serviceable
if needed, by just unscrewing the vent cap.

For best performance, use them in combination with Taco Air Scoops, which feature a 1/8" outlet on top

Replaces 400-3