Detergents (MBAS) test kit K-9400 comes in a cardboard box and contains everything needed to perform 20 tests: Refill, Comparator, reaction tube with lid, tip breaking tool, and instructions.
Shelf life: The refill contained in this kit has a shelf life of 5 months.
Cost per test: $3.79
50 or more $89.55
100 or more $84.58
200 or more $79.60