Wright stain has the optimum concentration of stain to provide accurate results when used on the Hemtrak™ WBC differential system and when used for manual staining. For use with Geometric Data’s Hemtrak™ system and for manual staining of blood smears. Also good for any time-controlled, automated slide stainer. The plastic container is easy to store and allows convenient dispensing into slide-stainer traps. Four 1-gal containers per case.