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This tube functions like a secchi disk in miniature to more accurately measure water clarity. The clear polycarbonate plastic tube is 120 cm in length and features a numeric centimeter scale on one side and a secchi disk design, 4.5 cm in diameter, on the bottom. The secchi disk design is screwed to a rubber stopper that can be removed for cleaning. The tube can be drained using the drain hose with attached finger crimp. Suitable for the GLOBE program.
|78-070||Turbidity Tube, 120cm|
|78-075||Turbidity Tube, 60cm|