Borosilicate glass filtering flask with 5000ml capacity. Heavy-walled flask features a heavy-duty rim and bolt neck ideal for vacuum filtration. Graduations are printed in durable white enamel. United Scientific flasks deliver an unbeatable combination of thermal shock resistance and physical strength. Shipping Details Shipping Type: parcel Free Shipping: true Specifications Maximum Age: N/A Maximum Grade Level: N/A Capacity: 5000 mL Grade Level: Grades 6-12 SUOM Description: Each Brand Name: United Scientific Description: Filtering Flask