502720A | Air Vent 1/4"NPT w/chk valve | Caleffi

**Caleffi Air Vent (SKU: 502720A)** The Caleffi Air Vent (502720A) is a precision-engineered solution for removing air pockets from hydronic systems. Constructed from durable materials, this vent features a 1/4" NPT connection and a built-in check valve to prevent water leakage. **Key Features:** * 1/4" NPT connection for easy installation * Check valve prevents water leakage * Brass body for corrosion resistance and durability * Compact design for convenient placement * Ideal for removing air pockets from hydronic systems **Benefits:** * Improves system efficiency by eliminating air bubbles * Protects pumps, boilers, and other components from air damage * Extends the lifespan of hydronic equipment * Reduces noise caused by trapped air