Product Description
Replacing a single funnel, clamp or gasket is far simpler than replacing an entire filter holder. These components and accessories keep WHEATON 25 mm vacuum filtration assemblies working, and the optional 50 mL funnel lets users run larger small-format samples on the same base.
This listing is for Wheaton catalog number 419331: 25mm Filtration Assemblies With No. 5 Stopper Connection and Stainless Steel Support Accessory, 50mL Glass Funnel. Choices include 15 mL and 50 mL glass funnels, fritted and stainless-screen support bases, an anodized aluminum clamp that fits any WHEATON 25 mm vacuum filter system, No. 5 silicone stoppers, stainless steel support screens and PTFE screen gaskets. Glass parts are WHEATON 33 low extractable borosilicate meeting USP Type I and ASTM E438 Type I, Class A. LIGHT LABS supplies the complete DWK Life Sciences line, including Kimble, Wheaton and DURAN labware.
Key Features
- Replacement funnels – 15 mL and 50 mL glass funnels fit 25 mm bases.
- Support base options – Fritted glass and stainless-screen base versions are available.
- Anodized aluminum clamp – Fits any WHEATON 25 mm vacuum filter system.
- Sealing parts – No. 5 silicone stoppers and PTFE screen gaskets come in packs of six.
- Low extractable glass – Meets USP Type I and ASTM E438 Type I, Class A requirements.
Specifications
| Catalog Number | 419331 |
| Brand | Wheaton (DWK Life Sciences) |
| Description | 25mm Filtration Assemblies With No. 5 Stopper Connection and Stainless Steel Support Accessory, 50mL Glass Funnel |
| Sold As | Each |
| Glass Type | WHEATON 33 low extractable borosilicate |
| Glass Standard | USP Type I; ASTM E438 Type I, Class A |
| Filter Diameter | 25 mm |
| Clamp Material | Anodized aluminum |
Available Options
- 419330 – 25mm Filtration Assemblies With No. 5 Stopper Connection and Stainless Steel Support Replacement Part, Glass Funnel
- 419332 – 25mm Filtration Assemblies With No. 5 Stopper Connection and Fritted Glass Support Replacement Part, 25mm Fritted Support Base
- 419333 – 25mm Filtration Assemblies With No. 5 Stopper Connection and Stainless Steel Support Replacement Part, Glass Base, 25mm, For S.S. Support
- 419334 – 25mm Filtration Assemblies With No. 5 Stopper Connection and Stainless Steel Support Replacement Part, Aluminum Clamp
- 419336 – 25mm Filtration Assemblies With No. 5 Stopper Connection and Fritted Glass Support Replacement Part, Silicone Stopper, Case of 6
- 419337 – 25mm Filtration Assemblies With No. 5 Stopper Connection and Stainless Steel Support Replacement Part, Stainless Steel Support Screen
- 419338 – 25mm Filtration Assemblies With No. 5 Stopper Connection and Stainless Steel Support Replacement Part, Support Screen Gasket, Case of 6
Applications
- Repair of 25 mm filter holders
- Expanding funnel capacity
- Replacement stoppers and gaskets
- Membrane filtration maintenance
