This red extruded vacuum tubing is flexible, smooth-walled and made of high-quality gum rubber. 5/16" ID, 1" OD. Sold as a pack of 10 feet. Fits the Electric Vacuum Pump with Pressure Gauge.
Fits these filter flasks:
- PYREX Filtering Flask, 1000mL ... NC-0402
- PYREX Filtering Flask, 500mL ... NC-0406
- Borosilicate Filtering Flask, 500mL ... NC-11904
- Borosilicate Filtering Flask, 250mL ... NC-4789