PM-20 ABSORPTION TUBE, STRAIGHT FORM

The Glass Thistle Tube is an essential piece of laboratory glassware precision-engineered for chemistry experiments, fluid dispensation, and micro-chemical setups. Crafted from high-grade, heavy-wall borosilicate glass, this apparatus features a wide cylindrical top reservoir that tapers into a single structural expansion bulb before dropping into a long, narrow delivery stem. Designed to pass easily through standard rubber stoppers or volumetric flasks, the PM-20 allows for the safe, controlled addition of liquid reagents into sealed systems while preventing hazardous chemical backflow or splashing.

Key Features

• Premium Borosilicate Glass Construction: Manufactured from high-thermal-shock-resistant glass that withstands aggressive acids, bases, organic solvents, and open-flame laboratory
temperatures.

• Integrated Single Safety Bulb: Features a precisely blown central expansion bulb designed to capture brief gas pressure surges and minimize sudden liquid backflow during chemical
reactions.

• Flanged Reinforced Top Rim: The wide upper cylinder is finished with a smooth, reinforced flanged rim to ensure structural durability and easy, spill-free pouring of liquid reagents.

• Long Precision-Drawn Delivery Stem: The extended, uniform glass stem allows you to channel chemical fluids deep beneath the liquid level of an active solution or apparatus setup.

• Comprehensive Multi-Size Catalog: Available in a range of standardized height and diameter combinations to perfectly accommodate different laboratory flask depths and volume
requirements.