Cellulose pads are made up of 100% pure cellulose and use as a membrane filter support in filter holders and cassettes.
| Model No. | Description | Packing size |
| SP25-100 | Cellulose Support Pad, 25mm | 100 |
| SP37-100 | Cellulose Support Pad, 37mm | 100 |
| SP37R-100 | Cellulose Support Ring, 37mm (For use with NIOSH 5506/5515/5044) | 100 |
