Paul Marienfeld McMaster Counting Chamber Glass Dual Grid, Made in Germany Counting-chamber-MacMaster Bright-line grids with 2× sets

Bright-line grids with 2× sets of metal-coated lines

This bundle includes 10 high-quality 25 mL low-shape glass beakers

these tips ensure reliable performance and long shelf life

Advanced optical coatings enhance light transmission and image clarity for consistent results

and most leading brands

Paul Marienfeld McMaster Counting Chamber Glass Dual Grid, Made in Germany Counting-chamber-MacMaster Bright-line grids with 2× setsAbout the Marienfeld MacMaster Counting Chamber The Marienfeld MacMaster counting chamber is designed for accurate counting of worm eggs and other microscopic samples on solid media. Manufactured in Germany by Paul Marienfeld GmbH, it guarantees high precision, durability, and laboratory reliability. Its cover glass features two counting grids, enabling precise quantification and efficient workflow in research, educational, or clinical settings.