Vacuum Filtration Guide
Filter Holder Models, Applications, and Specifications for Vacuum Filtration
Welcome to our collection of resource documents for vacuum filtration! For more information on specific products, be sure to visit the FAQ tab on our product pages, or contact a Sterlitech representative.
Vacuum filtration is used primarily in microbiological and laboratory procedures involving the collection of a particulate (bacteria, precipitate, etc.) from a liquid suspension. Liquid poured into a funnel passes through a filter, which retains the particulate, and filtrate can be collected into a filter flask, directly or via a vacuum manifold. Applying vacuum filtration also reduces process time compared to gravity flow.
Sterlitech's selection covers all the essential components for lab vacuum filtration applications, along with accessories. We also offer kits to enable easy set-up of water testing, media aspiration, and general filtration. For a list of compatible vacuum pumps, check them here. Our full product catalog is available for download on this page.
| Typical Applications | DNA/RNA hybridization, protein binding, receptor binding studies, and gravimetric analyses | Coliform, yeast, mold, total bacteria, and sterility testing | Colony hybridization, procedures requiring a large filtration area | Solvent purification and filtration, general filtration | |
|---|---|---|---|---|---|
| Recommended Filter Holder Model | |||||
| Glass with frit | KG 13 167120-32 | KG 25 | KG 47 167120-31 167120-38 | KG 90 | — |
| Glass with stainless steel support | — | KGS 25 | KGS 47 167120-33 167120-30 | KGS 90 SFC 142 | — |
| Glass with PTFE support | — | — | KGT 47 | — | — |
| Glass with all-PTFE seal | — | — | KGT 47 TF | — | — |
| All-glass assembly | — | GFA 25 GFS 25 VF5 VF8 | GFA 47 GFS 47 GFT 47 VF6 VF7 | — | VF3 VF6 VF7 VF12 VF15 VF16/17 Rocker 300C-VF12 |
| Filtration set (non-glass) | — | — | MF31 SF 10 SF 30 SF 11 SF 52 | — | MF30 LF5a-500 SF 30 SF 52 Rocker 300-LF30 Rocker 300-SF 10 Rocker 300-LF31 Lafil 400-LF30 Lafil 400-LF5a |
| Phase/Fraction collector | — | — | P/FC 1 & P/FC 2 | — | — |
| Polysulfone | — | — | KP 47 | — | — |
| Stainless steel | — | — | KSF 47 SF Series | — | — |
| Magnetic polyethersulfone | — | — | MF Series LF Series | — | — |
| Membrane Filter Specifications | |||||
| Membrane diameter (mm) | 13 | 25 | 47 | 90 142 (SFC142) | — |
| Filtration area (cm²) | 1.2 | 2.1 | 9.6 | 43.2 124.6 (SFC142) | — |
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