The job of collecting water samples is easier with the Whirl-Pak® Stand-Up Thio-Bag®! A special gusset on the bottom of the bag flattens out when water is put in the bag, allowing it to stand up completely by itself. No rack or other holder is needed to keep the bag upright. Forget washing and…

Sterile polyethylene bags with sodium thiosulfate Disposable, transparent bags for water sampling With white marking strip and 4 oz. fill line Similar to 1303R20 bags except contain a nontoxic, non-nutritive tablet impregnated with 10 mg of sodium thiosulfate. For dechlorinating water samples…