Efficient, high-performance filter, specifically designed for Air and Ground Source Heat Pump systems. The TF1 Sigma HP Filter utilises a unique filtration technology which is extremely effective at high flow rates and across a range of debris types to ensure the system remains free of contaminants.. A durable and robust construction, the TF1 Sigma HP Filter is made from a high quality glass reinforced engineering polymer with brass full bore valves as standard. Manufacturer Stock Code:62614 EAN Code:5014551626140 Sub-Category:Filters Brand:Fernox Range:TF1 System:Water Category:Water Treatment NCB:Yes Type:Domestic Filters