Fill level indicator, steel, chrome plated, 3/4'' drum tap. Supplied = assembled. Material = steel, chrome plated. Thread = 3/4 inch. Product type = drum handling. Drum fill level can be read exactly - visual media check. Chrome plated steel, glass tubes, for all 3/4'' drum taps (without tap) For steel and plastic drums - can be filled when installed. Drum fill level can be read exactly, visual media check. Chrome plated steel, glass tubes. For all 3/4'' drum taps. Filling possible when mounted. For steel and plastic drums. No tap.