The Fernox TF1 Sigma UB Filter 62631 is a compact under-boiler filter with a brass manifold, designed for tight spaces and concealed pipework. Built from durable, high-performance polymer and forged brass, it offers effective debris removal, easy cleaning via a 3-way valve, and flow efficiency—ideal for protecting modern heating systems in space-restricted installs.
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.