521619A | Mixing Valve MixCal 521 Adjustable 3-Way Thermostatic with Gauge 1 Inch Low Lead Brass Sweat Union 200 Pounds per Square Inch | Hydronic Caleffi End Connection_Union Female Our trusted HVAC store offers

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521619A | Mixing Valve MixCal 521 Adjustable 3-Way Thermostatic with Gauge 1 Inch Low Lead Brass Sweat Union 200 Pounds per Square Inch | Hydronic Caleffi End Connection_Union Female Our trusted HVAC store offers**Hydronic Caleffi Spe 521619A Mixing Valve** Calefii's Spe 521619A Mixing Valve is a high performance, three way thermostatic valve designed for precise temperature control in hydronic heating and cooling systems. Constructed from durable low lead brass, this valve features a rugged sweat union connection and a gauge for convenient monitoring of system pressure. With a maximum operating pressure of 200 PSI and a temperature range of up to 200 degrees