502720A | Air Vent 1/4"NPT w/chk valve | Caleffi Collection_ Air Elimination Its threaded portion allows for

Its threaded portion allows for secure and adjustable fastening

and improves indoor air quality

It provides accurate and reliable measurement of refrigerant flow

Engineered for seamless integration with the 25-A Series Water Feeder

while its compact design provides flexibility for space-constrained installations

502720A | Air Vent 1/4"NPT w/chk valve | Caleffi Collection_ Air Elimination Its threaded portion allows for**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