Fits the Jebao PU 18 UVC Clarifier & the UBF 12000 black box UV. PU18 Quartz Glass Sleeve. Zone D - HS, IV41-49, IV50, IV55&56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE, Isle of Man & Channel Islands.
eBay