22mm

TF1 Sigma Filter

A high-performance, precision-engineered in-line system filter, the TF1 Sigma Filter utilises a sealed, lidless design for increased reliability and strength. Ideal for use in restricted

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TF1 Sigma HP Filter

Specifically designed to protect Air and Ground Source Heat Pumps, the TF1 Sigma HP Filter efficiently removes all types of debris from renewable heating systems

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TF1 Compact Filter

A high-performance, magnetic in-line system filter, the TF1 Compact Filter is ideal for small and restricted spaces. This simple to install, composite plastic filter fits

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