Caleffi 304866A FlowShield® DuC Dual Check Backflow Preventer, 1″ Press Union, ASSE 1024, Lead-Free

Description

The Caleffi 304866A is a FlowShield DuC dual check backflow preventer with a 1 in press union connection, certified to ASSE 1024 for low-hazard residential and commercial potable water protection.

Product data compiled from Caleffi North America technical documentation. Last reviewed July 2026.

FunctionDual Check Valve