Stonylab Vacuum Rubber Tubing, 12mm (15/32'') OD 8mm (5/16'') ID Vacuum Tubing Natural Rubber Tube for Vacuum, 8 x 12mm(5/16'' x 15/32'') Fitting on StonyLab Glassware Labware - 3m (10 Feet)

Outside Diameter: approx.

15/32'' (12mm), Inside Diameter: approx.

5/16'' (8mm), Wall Thick: 13/64'' (5mm) Length: 10 feet (3m) Made with high quality natural rubber; Please NOTE: NOT FOOD GRADE Fit on StonyLab Buchner filtering funnel and filtering flasks