574012A | Autofill Combo 1/2"NPT (574) | Caleffi

**Autofill Combo 1/2" NPT (574012A)** Caleffi's Autofill Combo 1/2" NPT (574012A) is a highly efficient and time-saving solution for maintaining proper water pressure in closed hydronic systems. This compact and versatile unit combines an automatic fill valve, pressure gauge, and isolation valves into a single, pre-assembled package. **Key Features:** * Automatic filling and maintenance of system pressure * Accurate pressure monitoring with integrated gauge * Convenient isolation valves for easy maintenance * Durable construction for long-lasting performance **Benefits:** * Eliminates the need for manual filling and pressure adjustments * Ensures optimal system operation and energy efficiency * Simplifies system maintenance and reduces downtime * Protects boiler components from damage due to low water pressure **Applications:** * Closed hydronic heating and cooling systems * Residential and commercial buildings * Industrial facilities * Water boilers and pressure tanks Trust our HVAC supply store for the best prices, fast shipping, and exceptional customer service on Caleffi's Autofill Combo 1/2" NPT (574012A). Ensure the smooth and efficient operation of your hydronic systems with this industry-leading solution. Shop now!