This observation dish, the B.P.I. Watch Glass, is made with a stackable design that is ideal for Microscopy and Nematology.

The user can slide mount specimens with ease and stack the Watch Glasses into columns to eliminate the evaporation of water during observation, counting, and other purposes. This small-sized watch glass dish is made to the standards of the U.S. Bureau of Plant Industry model and was first introduced by Nathan Augustus Cobb.

Common names for this item include: Cobb Dish, BPI watch glass, Miniature Watch Glass, & Microscopy Watch Glass

Features:

• Micro / miniature BPI Watch Glass.
• Easy slide mounting of specimens.
• Stackable to eliminate evaporation.
• Frosted rim that permits labeling with a pencil.
• Deep 7mm dish bowl depth for a larger liquid capacity.
• Concaved bottom for collecting specimens in the center of the observation dish.
• High-quality Class A Type 1 borosilicate glass, Made in the United States.


Watch glasses are sold individually, discounts may be applied on orders over 100 pieces.
Contact us for more information.

These bottles are specifically designed for media preparation and delivery to multiple locations. The flat bottom design allows for magnetic stirring with a PTFE encapsulated stirring bar without decoupling that is very common with standard media bottles.

Design Features:

• Made with a flat bottom that eliminates the large radius on standard aspirator bottles. This modification allows a spinner bar to remain in the center during operation and avoids decoupling during operation
• Bottles will withstand hot air (dry) or steam (wet) sterilization.
• All necks are tooled for a #12 Stopper
• Up to 5 outlets available as standard options
  
  
  

Additinal Options Available:

• Up to a 4" Inner Diameter #16 Rubber Stopper Size
• Outlet Size modifications
• Reference Graduations
• Serial Numbers

Gas wash bottles have a GL-45 thread on both the Dispersion Tube and Bottle.

The pressure tight connection is made with a GL-45 to GL-45 coupling. This connection eliminates the need for grease and springs. The dispersion tube has removable hose connections that provide safe attachment and removable of rubber tubing.

The Pelican is circulatory distillation system with a vessel with two side arms that feed condensed vapor back into the vessel body. The Alembic collects product and the design drains product completely through the angled side arm for collection

• GL Threaded connections make the apparatus more accessable. There is no need for joint grease.
• Easy to safely assemble and disassemble the apparatus
• Purex GLass
• PTFE Connections