Combination pack 40 slot polystyrene test tube rack, 40 18x150mm test tubes & 40 cork stoppers saves over 20% compared to buying separately; only $28.50.
|33734-5||Cork stopper, #5, 22.2 High x 17.5 Top x 13.5mm Bottom||40|
|33770||Test tube rack, plastic, holds 40 18mm test tubes||1|
|55907R||Glass Test Tube 18x150mm, Rounded/Rim, 30mL/1.1oz||40|
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