Product Description
Routine membrane filtration runs smoother when the holder spreads vacuum evenly and handles real sample volumes. This 47 mm assembly accepts up to 1000 mL of liquid for particulate or microbiological contamination analysis, using a 300 mL funnel clamped over a fritted glass support.
This listing is for Wheaton catalog number 419347: 47mm Filtration Assembly No 8 Stopper With Fritted Glass Support, 300mL Funnel. The 40-60 micron fritted base supports the membrane uniformly, and a No. 8 stopper seats the assembly in a standard filter flask. Glass components are WHEATON 33 low extractable borosilicate meeting USP Type I and ASTM E438 Type I, Class A. Flasks are not included and use a #2 hose connection for 1/4 in ID tubing. Add it to your LIGHT LABS order alongside the rest of your glassware and closures.
Key Features
- 300 mL funnel – Holds a large working volume for repeated pours.
- Fritted glass support – 40-60 micron frit gives even vacuum across the membrane.
- No. 8 stopper connection – Fits standard filter flasks.
- Handles up to 1000 mL – Suited to typical contamination testing volumes.
- Low extractable glass – Meets USP Type I and ASTM E438 Type I, Class A requirements.
Specifications
| Catalog Number | 419347 |
| Brand | Wheaton (DWK Life Sciences) |
| Description | 47mm Filtration Assembly No 8 Stopper With Fritted Glass Support, 300mL Funnel |
| Sold As | Each |
| Glass Type | WHEATON 33 low extractable borosilicate |
| Glass Standard | USP Type I; ASTM E438 Type I, Class A |
| Filter Diameter | 47 mm |
| Funnel Capacity | 300 mL |
| Frit Porosity | 40-60 micron |
| Flask Connection | No. 8 stopper |
Applications
- Particulate contamination testing
- Microbiological membrane filtration
- Water quality analysis
- General vacuum filtration
