Boiler-m8 Ultimate Brass Magnetic Heating System Filters are exactly that, the Ultimate in system protection, with our legendary 25 Year Warranty. Easy to fit, easy to service, the Boiler-m8 Ultimate is a high capacity rock solid brass filter that won't let your system down. Available in various connection sizes including 22mm & 28mm compression, and also now in 3/4" & 1" FI BSP
