Caleffi 573006A

Caleffi 573006A is a reliable Combo Autofill with 1/2" press connections on both ends. This ASSE 1012 certified unit combines automatic fill and shut-off capabilities for efficient hydronic system management.

Designed for easy installation in tight spaces, this pre-assembled autofill valve delivers consistent pressure to protect boilers and radiant heating loops in residential or light commercial setups.

This combination valve is ideal for boiler feed lines, radiant floor heating, and other residential or commercial hydronic systems, delivering reliable control and peace of mind.

• 1/2" press x 1/2" press connections for fast, tool-free installation in compatible piping networks, minimizing downtime.
• ASSE 1012 certified design ensures code-compliant auto-fill operation with built-in safety shut-off and guaranteed performance.
• Pre-assembled, compact unit minimizes installation steps and reduces space requirements in tight mechanical rooms.
• Ideal for boiler feeds, radiant floor systems, and other hydronic applications requiring steady automatic filling and protection.
• Rugged performance with a reliable spring-diaphragm mechanism delivers consistent pressure control across diverse operating conditions.