Grundfos 00529911 Union Adapter Set 321042-401 To maximize vibration damping

To maximize vibration damping

making it an ideal Carrier replacement part for systems with higher accessory loads or multiple relays

maintaining steady airflow

Industrial Durability: Engineered with premium materials to withstand rapid thermal cycling and high-heat environments for extended service life

This is a #56 drill size orifice

Grundfos 00529911 Union Adapter Set 321042-401 To maximize vibration dampingThe Grundfos 00529911 Union Adapter Set is a precision engineered fitting kit designed for seamless integration between Grundfos circulator pumps and standard 3 4 inch sweat copper tubing. This union kit facilitates a reliable, leak free connection, ensuring optimal fluid dynamics within hydronic heating systems and closed loop domestic hot water applications. Built with high grade cast bronze or brass components, these adapters provide superior