Compare Quick view WET INSTITUTE WET INSTITUTE | 18" CLAMP W/4655-09A | 32-050-706 MSRP: Was: Now: $269.49 WET INSTITUTE | 18” CLAMP W/4655-09A| 32-050-706 DIATOMACEOUS EARTH FILTER THIS ITEM INCLUDES; BAND CLAMP & NUT, INNER DIAMETER 18" BAND WIDTH 7/8"