Ace Glass 7200-30 Ace Tube with 10 mm Disc 45.5 m, 18 mm

Fritted disc is angled approximately 15° from stem, permitting the small gas bubbles to rise from the disc surface without excessive formation of large bubbles. Tubes perform comparably to a horizontal disc, but construction allows their use in test tubes or flasks where a large opening is not available.Tubes are manufactured from Borosilicate glass.