The Worcester Greenstar 22 mm System Filter 7733600236 is a powerful magnetic and non‑magnetic filter that removes rust, metal filings, solder fragments and other debris from your central heating water — helping prevent boiler and pump issues. It is easy to install under, over or remotely from the boiler and includes isolation valves, a detachable body for easy servicing and a drainage point for maintenance. With up to 300 g of magnetic debris captured, this filter helps prolong boiler life and maintain heating efficiency.
The Worcester Greenstar Mini System Filter 22mm (7733600266) provides compact, high-performance protection for your heating system by capturing magnetite and debris before they enter the boiler. Designed for maximum efficiency and easy installation, it helps improve system reliability, prolong boiler lifespan, and reduce maintenance costs—ideal for modern Worcester Bosch heating setups.