General Lab Products & Reviews

These 100 mL PYREX® round bottom boiling flasks have full length outer 14/20 Standard Taper joints, but with shorter necks. They are manufactured from No. 7740 borosilicate glass. Wall thicknesses are carefully controlled to provide the proper balance between thermal expansion and mechanical strength for greater shock resistance. Their excellent chemical durability results in contamination-free results and long life under the…

This 10 mL Round Bottom Flask is a replacement part for the 6949M series of PYREX® microchemistry kits.

This 5 mL Round Bottom Flask is a replacement part for the 6949M series of PYREX® microchemistry kits.

Brand: PYREX® Flask Style: Low form Capacity: 2500 mL Neck Style: Narrow mouth

These 2800 mL wide mouth PYREX® Fernbach-style culture flasks have triple baffles located at the center of the flask bottom to achieve maximal oxygen transfer to culture medium. These triple baffled flasks have a Delong-style 38mm neck for use with plastic or stainless steel closures. For plastic closures see Nos. 26796-38 or 26797-38. These flasks have a large marking spot.Note: Do not use this flask on a heat source smaller…

Brand: PYREX® Flask Style: Fernbach Capacity: 2800 mL Neck Style: Wide Mouth

Brand: PYREX® Flask Style: Fernbach Capacity: 2800 mL Neck Style: Wide Mouth

These 50 mL PYREX® long neck shaker culture flasks are basically Erlenmeyer flasks to which a long straight, rimless neck of heavy tubing has been added. The longer necks reduce the amount of splashed solution reaching the closure. They are ideal for shaker cultures. Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. For convenience, these flasks include a marking…

These 125 mL PYREX® Delong style shaker flasks have three baffle indents designed to provide greater agitation of solutions to improve oxygen or gas transfer when used with rotary or reciprocating shakers. The long neck reduces splashing and is designed for two-position polypropylene closures. Their uniform wall thickness provides the proper balance between mechanical strength and thermal shock resistance. For convenience, the…

Delong style neck, with three extra-deep baffles, to enhance gas transfer when used with rotary or reciprocating shakers. Long neck reduces splashing and is designed for two-position poly­propylene closures. Closures are sold separately.