Kontes 971000-3047 Solid Phase Extraction Manifold Set with 47mm Glass Filter Holder, 3 Place

All SPE Manifolds are supplied with three-way valves that allow the venting to atmosphere of each station without affecting the vacuum in the rest of the system. SPE Manifolds are manufactured from corrosion resistant stainless steel. Valves have stainless steel bodies with PTFE plugs. The SPE Funnels have a sharp edge on the bottom inside diameter that, combined with the stronger spring in our aluminum clamps, minimizes any horizontal capillary action of the sample and solvent into the disk. Extracted samples can be collected directly into K-D concentrator tubes, EPA water analysis vials, sample vials and test tubes. PTFE-coated stainless steel support screen reduces the possibility of sample-to-sample cross contamination compared to the traditional glass frit. The PTFE coating also protects the support screen from corrosion caused by acid preserved samples.