- Rimless
These tubes are rimless for convenient plugging and rack storage. Walls and bottoms are of uniform thickness. Ends are fire polished. The 6-mm, 22-mm OD tubes do not have marking spots.
These tubes are rimless for convenient plugging and rack storage. Walls and bottoms are of uniform thickness. Ends are fire polished. The 6-mm, 22-mm OD tubes do not have marking spots.