Resideo FV180 Air Vent 322057-301 from small 1/2" NPT to

from small 1/2" NPT to large 6" flanged bodies

Precise Blower Activation: Effectively triggers accessory systems like whole-house humidifiers and electronic air cleaners only when the blower is active

Robust Safety Logic: Manual reset prevents cycling on a dangerous high-limit condition

Minimizes fuel consumption and reduces utility costs for gas-fired boilers

the Carrier 327972-754 Gas Valve Kit provides precise fuel regulation and manifold integration for specific mid-to-high efficiency furnaces

Resideo FV180 Air Vent 322057-301 from small 1/2" NPT toThe Resideo FV180 is a high performance, spring loaded float type air vent engineered for efficient air removal in closed hydronic heating and cooling systems. Built with a durable brass body, this 1 8" NPT automatic air vent features a patented fulcrum design that delivers a venting rate 3 to 4 times higher than standard competitive models. Specifically designed to handle the accumulation of air released during the heating of cold water, the Resideo