"PARKWAY PLASTICS, INC."

All-in-one support design.

Featuring a removable plastic pan and a zero adjustment knob that allows for accurate measurement and comparison using liquids or solids.

Smooth-running ball-bearing clamp pulley for use with inclined planes, force experiments, or demonstrations of work and machines, this durable, lightweight plastic pulley fastens to surfaces up to 18 mm thick.

Made of polypropylene plastic, these multipurpose policeman-style stirring rods with spatula ends serve as versatile tools for various mixing, scraping and stirring tasks in the laboratory.

General use jar, Capacity: 8 oz.

Great for classroom use.

Charts provide a 20' test distance with non-reflective matte finish.

A powerful, multi-purpose liquid for precision cleaning of glassware, filter membranes, laboratory equipment, electronics, metal parts, plastics, and other surfaces

Mounted on molded plastic base, the unit consists of a base into the top of which may be screwed one of a set of four vases of differing shapes. An aperture in the bottom has a thin rubber diaphragm across it, bearing upon the short arm of the lever pointer. A moveable index on the vertical rod enables the height of water in vases to be set at same level. The apparatus is mounted on moulded plastic base that measures 25 x 17.5cm. The experiment is performed by screwing in each vase, in turn, and filling with water to the same level. It will be seen that the given height of water will result in the same deflection of pointer whatever shape of the vase.

The durable plastic construction and bright colors of the Basic Ear Model encourages hands-on learning.

70% Isopropyl alcohol supplied in a 55 gal. plastic drum, tested for endotoxins.

Class A volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene stopper, and blue or white enamel markings.

Plastic, tubular Newton spring balances. Dual scale labeled, perfect for classroom or laboratory use, physics experiments and demonstrations.

Comprised of a thick plastic base with four rubber feet, along with with an 18cm diameter aluminium plate with an insulating handle.

Pressure-equalizing dropping funnel made of borosilicate glass with a 100 ml capacity, featuring a 19/26 plastic stopper and PTFE key stopcock, allowing for efficient and controlled addition of liquids in various laboratory applications.

Durable plastic jumbo test tubes made from PET.