Watts 0590722 Air Vent maintaining the integrity of the

maintaining the integrity of the heat exchanger assembly requires the use of exact OEM replacement parts like the R37520B002 to ensure consistent furnace safety limit performance

ensuring your heating equipment maintains consistent performance throughout the season

Multi-Positional Mounting: Can be installed in various orientations without compromising performance (upright preferred)

This industrial-grade gas furnace part features a stainless steel outer jacket that prevents heat blistering and maximizes the service life of the pilot light sensor under high-temperature conditions

restoring operation without manual intervention

Watts 0590722 Air Vent maintaining the integrity of theThe Watts 0590722, also identified as the FV 4M1 1 2, is a high performance automatic air vent designed for reliable air elimination in closed hydronic heating systems. Engineered with a heavy duty brass body and cover, this valve facilitates the continuous purging of air from hot or cold water distribution lines, preventing air locks and system noise. Featuring a 1 2 inch male NPT connection, it is rated for a maximum pressure of 150 psi (10 bar) and