Snap Sampler Passive Sampling System* SNAP SAMPLER BROCHURE * * SNAP SAMPLER 250 BROCHURE * * SNAP SAMPLER GUIDE * The Snap Sampler dedicated passive sampling system is one of the easiest ways to collect samples for VOCs, SVOCs, PFAS metals and more. There are three models of Snap Sampler modules one holds the 40 mL VOA bottles, a second holds either the 125 or 350 mL HDPE bottle, and the third holds the 250 mL HDPE bottle. Up to six modules can be connected in any combination to fit