Worcester Bosch 87161405040

Worcester Bosch Automatic Purger 87161405040

This device, also known as an Automatic Air Valve (AAV) allows excess air to be purged from the closed loop.

This part fits the following boilers:

• Worcester 24I NG FSN Combi
• Worcester 24SI II NG FSN Combi
• Worcester SI 25 FSN LPG Combi
• Worcester SI 25 FSN NG Combi
• Worcester 28I NG FSN Combi
• Worcester 28SI NG FSN Combi
• Worcester 28SI LPG FSP Combi
• Worcester 28SI II NG FSN Combi
• Worcester C1 FSN British Gas Combi
• Worcester RD628 FSN NG British Gas Combi