The Everpure EV979838 is the correct replacement filter head for the following systems:
The Everpure QC Twin Series Filter Head EV979838 is a replacement filter head for the Everpure ViruPure Plus Commercial Grade Twin Series Microbiological Purifier. The Everpure QC Twin Series Head features 3/8 inch quick connect fittings and a flush valve that is located between the first and second filter heads. This Twin Series filter head works with the Everpure V-500 Virupure Cartridge.
Everpure QC Twin Series Filter Head EV979838 specifications: