https://www.hergy.com.tw/wp-content/uploads/2024/01/UD7-only-NSF-2.jpg709709jesse_lin/wp-content/uploads/2020/12/hegry-logo2.pngjesse_lin2024-01-24 15:38:462024-01-25 11:17:56NSF 55 Class B Certified - World highest 0.75GPM, Qβ coliphage 4.2-log reduction Hergy UVC LED Water Disinfection Reactor