Resideo - Honeywell Home AP402

AP402 Air Purger from Resideo – Honeywell Home delivers reliable air purging for your HVAC and hydronic system. With a focus on dependable performance, this purger helps remove trapped air to improve overall system efficiency and reliability.

The AP402 features a 1/2" bottom connection and a 1/8" top connection, rated to 125 PSI and 275F for versatile, safe operation across compatible setups.

Designed for quick, straightforward installation in typical hydronic and HVAC configurations, the AP402 is built to withstand everyday household use. Its compact form fits neatly near boilers, manifolds, or control boxes, making maintenance fast and less intrusive. By enabling efficient air purging, it helps reduce noise and pressure fluctuations while keeping your system running smoothly.

Key specifications and benefits at a glance include:

• 1/2" bottom connection
• 1/8" top connection
• 125 PSI maximum
• 275F maximum temperature

Trust the Resideo/Honeywell Home AP402 for a reliable, compatible solution in your home heating and cooling setup.