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cheap Caleffi flow meter for plastic manifoldType 671 NEW, € 22,45
112 Balancing valve with flow meter | Caleffi International
Hydronic Caleffi 535651ha Pressure Reducing Valve Prescal 535h With Gauge 3/4 Inch Press Union Low Lead Brass 300 Pounds Per Square Inch 180 Degrees Fahrenheit | Blackhawk Supply
Hydronic Caleffi 520516a Mixing Valve Anglemix 520 Thermostatic 3-way With Gauge 3/4 Inch Low Lead Brass Press 150 Pounds Per Square Inch | Midwest Supply
BALANCING VALVE WITH FLOW METER, FOR SOLAR THERMAL SYSTEMS