Product Description
Building custom filter funnels, gas dispersion tubes or columns starts with choosing the right porosity. These sintered glass discs give glassblowers a ready-made filtration element to fuse into their own apparatus.
This listing is for DURAN catalog number 251555305: Filter Disc, sintered glass, edge not fused, centred, surfaces untreated, Ø 55 mm, Porosity 3. Each disc is made from borosilicate glass 3.3, with the edge not fused, centered and surfaces untreated, ready for further processing. Porosity should be chosen so the largest pore is slightly smaller than the smallest particle to be retained. This listing is a 55 mm disc in porosity 3. Add it to your LIGHT LABS order alongside the rest of your glassware and closures.
Key Features
- Porosity 3 – Medium porosity for general filtration.
- Unfused edge – Ready for sealing into glass apparatus.
- Borosilicate 3.3 – Excellent chemical and thermal resistance.
- Centered disc – Consistent geometry for fabrication.
Specifications
| Catalog Number | 251555305 |
| Brand | DURAN (DWK Life Sciences) |
| Description | Filter Disc, sintered glass, edge not fused, centred, surfaces untreated, Ø 55 mm, Porosity 3 |
| Sold As | Each |
| Material | Borosilicate glass 3.3 |
| Edge | Not fused, centered |
| Surface | Untreated |
| Autoclavable | Yes |
Applications
- Custom filter funnel fabrication
- Gas dispersion devices
- Chromatography column frits
- Glassblowing repairs
