Rubber Stoppers One Hole - Bottom Diameter: 21mm - Pack of 10
Product code: PP00054768
In stock
£2.85 exc. VAT
£3.42 inc. VAT
Product code: PP00054768
In stock
£2.85 exc. VAT
£3.42 inc. VAT
Free next day delivery
Easy returns
These durable rubber stoppers with a single hole are ideal for securely sealing laboratory glassware during science experiments in primary, secondary and college settings. Designed for safe use with chemicals, they help teachers and students carry out investigations with confidence.
Made from high-quality rubber, resistant to acids, alkalis and ammonia
Bottom diameter: 21mm; Top diameter: 24mm; Length: 28mm
Single 5mm hole for tubing or apparatus
Temperature stable from -20°C to 70°C
Pack of 10 for classroom convenience
Easy to clean and suitable for repeated use
Please note: Extreme care must be used when inserting glass into the holes in rubber stoppers. See CLEAPSS for details.
