The LUMINOR BLACKCOMB 5.1 LBH5-Z12 model is a 8 GPM UV System with a 10" and 20" filter housing that offers the convenience of an all-in-one package make installation and servicing simple. The LUMINOR rack-mount UV Systems feature one of the most advanced residential controller with a color user interface that integrates various screens that display diagnostics, status, warnings, and even QR codes that can be easily found on LUMINOR's website.