Stopper
These high-quality laboratory stoppers are designed to provide perfect sealing for standard ground glass joints and laboratory equipment. Made from borosilicate glass, PTFE, and rubber, they ensure chemical resistance, heat tolerance, and long-lasting performance.
The range includes multiple designs to suit different laboratory needs:
Glass Stoppers (Hexagonal, Penny, Long Head) – Ideal for sealing flasks, condensers, and chemical bottles.
PTFE Stoppers – Provide gas-tight and liquid-tight seals without the need for greasing; reusable and chemically inert.
PTFE Joining and Rigid Sleeves – Used for smooth joint connections, ensuring tight fit and leak-proof operation.
Amber Glass Stoppers – Protect light-sensitive reagents from UV exposure.
Rubber Stoppers – Flexible and economical option suitable for general laboratory use.
Available Types and Capacities:
Type / Material | Design / Feature | Cone Size / Joint |
Glass Stopper | Hexagonal Head, Hollow Inside | 10/19 – 34/35 |
PTFE Stopper | Hexagonal Head | 10/19 – 34/35 |
Glass Stopper | Penny Head, Hollow Inside | 10/19 – 55/44 |
PTFE Joining Sleeves | Gas/Liquid Tight Slip-On Type | B-14 – B-55 |
PTFE Rigid Sleeves | Solid, Reusable | B-14 – B-34 |
Penny Head Stopper for Volumetric Flask | For Standard Flasks | 10/15 – 19/20 |
Glass Stopper | Long Head, Hollow Inside | 24/29 – 34/35 |
Glass Stopper | Amber Colour, Hexagonal Head | 10/19 – 34/35 |
Rubber Stopper | Flexible, Dual Price Option (Silicone/Normal) | 10/19 – 55/44 |