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The HEATLINK 78302 TwistSeal Mini 40mm 2-port Z.V.Supply & Flow Meter Return Module Pair is an active plumbing component designed for hydronic heating systems. The supply module provides on/off manual control, enabling the isolation of individual loops. The return module facilitates visual balancing of the flow rate through its integrated flow meter, ensuring precise system operation. This module pair includes O-rings for secure installation.
Compact 40mm module pair for hydronic system control and flow balancing.
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