This item is from Hach. A Hatch Total Phosphate Test Kit, their model PO-24. It is in the original field test case, with the correct insert to hold test items in their proper places.
LOCTITE 272 High Temperature, High Strength Red Threadlocker LOCTITE® 272™ High Temperature, High Strength Red Threadlocker withstands temperatures to 450°F. Provides a fast cure on most surfaces, including "as received" fasteners. Recommended for bolts up to 1 1/2" (36 mm) in diameter.
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