"solar+filter"

Our high-quality borosilicate filtering flasks meet ASTM standards.

Whatman Grade 4 qualitative filter paper.

The Solar Thermal Exploration Kit is modeled after a domestic solar water-heating system. Explore variables such as box color, light intensity, tube design, rate of water pumping, and amount of time it takes to heat the water. Learn about what makes a solar water heating system more or less efficient.

Teach any child or student the power of solar energy by building a USB solar charger!

Vacuum filter systems available in four sizes: 150 ml; 250 ml; 500 ml and 1 L. Adapters are colour coded by membrane type for easy product identification: Polyethersulfone (PES) yellow; cellulose acetate (CA) orange; cellulose nitrate (CN) blue; nylon (NY) red.

A general qualitative filter with creped surface. Faster than grade 201 and retains large crystalline coarse particles. Widely used in industrial laboratories and students laboratories for routine filtration.

Whatman mixed cellulose ester membranes are composed of cellulose acetate and cellulose nitrate. These membranes are characterized by a smoother and more uniform surface than pure nitrocellulose filters.

Filtration filter holders are offered with a wide variety of components for different applications.

The Solar System Poster

Whatman Grade 4 Qualitative Filter Papers are a standard grade, high flow rate filter paper. They are useful in qualitative analytical separations when fast flow is required and the collection of fine particles is not critical.

Designed for particulate or biological contamination analysis of small volumes using a vacuum filter.

The most widely used qualitative filter paper for routine applications.

With this Solar Cell Kit, you can harness the power of the sun.

Buchner filtering flasks are made of high quality, heavy duty borosilicate glass.

Qualitative filter paper.

This convenient system features a 90 mm Ø opening to filter faster through 0.22 μm membranes where autoclaving is not required.