Main Boiler Auto Air Vent 720777601

Main Boiler Auto Air Vent (720777601) Maintain your boiler’s peak performance and protect your heating system with this premium Main Auto Air Vent. This essential component is designed to automatically release trapped air from the sealed circuit, preventing internal corrosion, reducing operational noise, and ensuring consistent heat distribution throughout your home. Direct Replacement: Specifically engineered as a high-quality replacement for Main part number 720777601. System Longevity: By removing air pockets, it prevents "air locking" and protects the internal pump and heat exchanger from unnecessary wear and cavitation. Maintenance-Free Operation: Features a reliable float mechanism that works continuously to keep your system air-free without manual intervention. Quiet Efficiency: Effectively resolves common "gurgling" or "banging" noises caused by trapped air in the boiler circuit. Compatible Models: Main Eco Compact 15 System — GC No. 41-467-30 Main Eco Compact 18 System — GC No. 41-467-31 Main Eco Compact 25 Combi — GC No. 47-467-14 Main Eco Compact 30 Combi — GC No. 47-467-15 Main 24 System ErP (AC/BC/CC/DC) — GC No. 41-467-28 Main 25 Combi ERP (AC/BC/CC) — GC No. 47-467-12 Main A01544-06