A medium micron-fritted disc, made of fine porous glass. Liquids or gasses can pass through. The fritted discs are made by heating or smashing certain-sized glass particles together in a process known as sintering.
The bottom GL-18 connection allows for quick draining via a tube or the GL-18 cap and barb may also be removed if the user does not require it.
For quick and easy flow control over your column.
Rodaviss Stopper with 45/50 top outer joint.
Now your glassware won’t get stuck, thanks to the black plastic ring below the glass protrusion on the dome. When the stopper is unscrewed, the ring presses up against the protruding glass and applies even pressure, allowing a safe disconnect of the joint every time.