Check the listing for details. Fernox F9 Plus Filter Fluid Central Heating Protector 500ml for 16 Radiators. Condition: New. Listed at 39.56 USD. Kudos Trading Free Delivery Vat Receipt60 Days Returns A Family Business since 2001 on all our items is included with all our items on every single product99.8% Positive FeedbackSame Day Shipping*Sent With Tracking No.Visit Our eBay Shop Uponor, Polypipe, Warmup, UFH Direct, Screwfix, The Underfloor Heating Store, Prowarm, Ambient, Ambivent, Reliance RWC, Reliable, PSW Trade Suppliers, The Underfloor Heating Company, Sheilds Trading Underfloor Heating, Plumb Nation, Nu-Heat, John Guest, Omnie, Solo Heat, Wavin, Danfos, Devi, Rayotec, Demister, Demista, Heatmiser, Prowarm, Underfloor Heating Express, Warmer, Grundfos pums UPM3, ups2, Wilo, Ecocirc, Heating Master Store, VPS Trading, Living Heat Underfloor Heating, water underfloor heating kit, insulation, thermostat, single zone water underfloor heating kit, water controller, neo stat, neostat v2, neohub, Neo Hub, neoplug, uh-8 wiring centre, uh-4, uh-8-rf, DS-Setback, water underfloor heating cost, system, Electric Underfloor Heating 150w 200w Designed for use with Fernox Tf1 in line system filters or other similar filters, this unique inhibitor package includes an active dispersant which is proven to aid the safe collection of corrosion, debris and scale via a filter. The Protector Plus Filter Fluid F9 enhances the performance of a system filter whilst offering full protection against corrosion and scale formation. This innovative, proven formulation also extends system life and maintains optimum efficiency, while still being an environmentally friendly formulation. Concentration levels should be checked as part of the annual maintenance system service. Unique inhibitor package with dispersant designed to lift and deliver circulating debris in the system to a system filter for safe collection and removal. Must be used only in conjunction with a system filter, provides premium protection against corrosion and scale in mixed metal heating and cooling systems, including aluminium. Designed to be left in the system permanently. Treats up to 130 litres of system water or 16 radiators and the equivalent of 250m of underfloor systems. Prevents scale and corrosion formation. Innovative, best in class formulation optimises efficiency and extends system lifespan. With next working day delivery.