Inta Zero Anti-Freeze Valve 28mmInta Zero Anti Freeze Valve 28mm ZERO28 The Inta Zero Anti Freeze Valve is designed to protect heat pump and external heating pipework from frost damage. The valve automatically opens to discharge water when temperatures approach freezing, helping prevent burst pipes and system failure in exposed locations. With 28mm connections, it is ideal for heat pump flow and return pipework installed outdoors or in unheated areas. The fully automatic mechanical
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