502720A | Air Vent 1/4"NPT w/chk valve | Caleffi Used on_AF90 (1802-0087-023) This heavy-duty heater element

(1802-0087-023) This heavy-duty heater element assembly is designed to provide reliable and efficient heating for industrial applications

2 X 2 design provides ample mounting points for fixtures

**Key Features and Benefits:** * Brass body provides corrosion resistance and durability

It effectively seals the combustion chamber

providing an ideal replacement solution

502720A | Air Vent 1/4"NPT w/chk valve | Caleffi Used on_AF90 (1802-0087-023) This heavy-duty heater element**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