STOPPERS RUBBER BS2775 2-HOLE NO 21 PK 20 Lab Funnels Buchner Porcelain For preparation of samples to

For preparation of samples to the required 0

mask and power supply lead

1°C)  Accuracy  conductivity        resistivity      temperature   ±0

Suitable for use up to 260°C or 300°C for short periods

With serrated metal cutting edge and lid

STOPPERS RUBBER BS2775 2-HOLE NO 21 PK 20 Lab Funnels Buchner Porcelain For preparation of samples toRubber Stoppers to BS2775. Each stopper has a moulded in number, corresponding to the bottom diameter in millimetres. Hole drilling Natural rubber stoppers are available pre drilled. Where specified the hole diameter will be sizes: 3 and 4: supplied solid only 5 to 8: 1 hole of 3mm 9 to 105: 1 hole of 5mm 15 to 105: 2 holes of 5mm Neoprene rubber stoppers are available pre drilled to special order. Hole diameters are as given for natural rubber