Four Neck Flask

SYNTHWARE round bottom, heavy wall, four neck flasks with standard taper outer joints on both the center neck and the angled side necks. All sizes are hand blown from tubing to ensure uniform wall thickness.

SYNTHWARE round bottom, heavy wall, four neck flasks with standard taper outer joints on both the center neck and the vertical side necks. All sizes are hand blown from tubing to ensure uniform wall thickness.

Head with four necks, three inline standard taper joints and one 90 degree joint. 10/30 size for use with our 8314 family of jointed thermometers. Use with our 6504, 6511 & 6516 reaction vessels that feature either a 137 x 100mm ID or 168 x 130mm ID flat flange. Use with our 6508 or 6510 clamps. For…

Round bottom flask with four necks arranged 3 in-line and one at 90 degrees. The three side necks are angled.

Round bottom flask with four necks arranged 3 in-line and one at 90 degrees. The three side necks are angled.

Round bottom flask with four necks arranged 3 in-line and one 10/30 joint at 90 degrees. The 500ml size has angled side necks while all other sizes feature vertical necks. Available in heavy wall.

Round bottom flask with four necks arranged 3 in-line and one at 90 degrees. 500ml and smaller flasks have angled side necks while larger sizes feature vertical necks. Available in heavy wall.

These PYREX® multiple neck flasks have three vertical side necks with outer Standard Taper joints placed 90° apart and a larger center neck with a vertical Standard Taper joint.

Available in various sizes, these borosilicate glass round bottom flasks have four vertical necks - one center neck and three side necks which are 90° apart. All necks have Standard Taper outer joints.

Round bottom flask with four necks arranged 3 in-line and one #7 Ace-Thred neck (ideal for suspending a thermometer or probe) at 90 degrees. The 500ml and 250ml sizes have angled side necks while the larger sizes feature vertical necks. Available in he

The Sibata Class A Volumetric Flask with ground glass stopper features machine-blown body and heavy-beaded, heavy-tubing neck that is tooled for standard taper glass stopper.

Heavy wall filtering flask includes a bolt neck with tubulation. Borosilicate glass flasks are designed to give the best combination of thermal shock resistance and physical strength. Feature heavy-duty rims and printing in durable white enamel.

Reaction flask head, 100mm (4 inch) conical flange, four neck. Center neck in-line with two 24/40 side necks. Third side neck is perpendicular to the in-line necks. Use our 6496 series clamp to secure to flask.

Featuring a center neck and three side necks with full length outer Standard Taper joints that are 120° apart, these borosilicate glass reaction vessel lids have a conical flange. Bottom flange ID is 4" and ground for a leak-proof fit with a reaction flask. For use with reaction vessels…

Featuring a center neck and two side necks with full length outer Standard Taper joints that are 180° apart, these borosilicate glass reaction vessel lids have a conical flange. The bottom part of lid is finely ground for a leak-proof fit with flask. LG-8030 is used on cylindrical or…

SYNTHWARE round bottom, heavy wall, three neck flasks with a bottom outlet. Both the center neck and the vertical side necks are standard taper outer joints. The lower outlet is a 4mm straight bore PTFE stopcock. All sizes are hand blown from tubing to ensure uniform wall thickness.

Three-neck or four-neck flask top with a flat ground flange for use with cylindrical and spherical flasks having the same ID Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

Delong style neck Four extra deep bottom baffles Borosilicate glass, type 1, class A

Delong style neck Four extra deep bottom baffles Borosilicate glass, type 1, class A

Cell culture shake flask with four bottom baffles to enhance mixing and gas transfer. Flask has long style neck with constriction to reduce foaming and splashing of media. See Ace 3917 & 3918 product families for the appropriate plastic or stainless steel closure.

The Sibata Class A Volumetric Flask features machine-blown body and heavy-beaded, heavy-tubing neck that is tooled for a snap-cap fit.

Featuring a center neck and three side necks with full length outer Standard Taper joints, this borosilicate glass 4-neck reaction vessel lid/cover has a flat flange. Use LG-7316 clamps. NOTE: LG-8087 is designed to be used with LG-8080, LG-8084, LG-8085, and LG-8089 cylindrical reaction…

For more thorough cleaning of neck and sides Black nylon monofilament bristles and plastic handle Flexible bristle portion 1 1/2” x 4” long, tufted at both ends. Total length 16 1/2 ”.

…lids/covers have a contact surface that is finely ground to provide a tight seal. Featuring a flat flange, these pressed lids have a center neck and three side necks with outer Standard Taper joints. Use LG-7316 clamps. NOTE: LG-8081 for use with LG-8080 cylindrical reaction vessels. LG-8083…

Conical 4" neck for use with 6475, 6476, 6477, 6479, 6480, 6481, 6491, 6492, 6497, 6498 and 9656 ACE Reaction Flasks. Supplied with three outer joints. Use 6496 Clamp for securing to flasks.

Conical 4" neck for use with 6475, 6476, 6477, 6479, 6480, 6481, 6491, 6492, 6497, 6498 and 9656 ACE Reaction Flasks. Supplied with three socket joints. Use 6496 Clamp for securing to flasks

Conical 4" (10.2 cm) neck for use with 6475, 6476, 6477, 6479, 6480, 6481, 6491, 6492, 6497, 6498 and 9656 ACE Reaction Flasks. Supplied with three outer joints in line, plus a thermometer side arm which is internally threaded for use with 5029 Nylon B

This conical 4" neck has three outer joints in line, plus a 14/35 outer joint which takes a 5021 Bushing Adapter to be used with ACE 8315 10/30 Thermometer. The 6500 Thermometer Well can also used with this head, when using a standard thermometer. For

Conical 4" neck with three socket joints in line, plus a 14/35 outer joint for thermometer. Use 6496 Clamp for securing to flasks. For use with 6475, 6476, 6477, 6479, 6480, 6481, 6491, 6492, 6497, 6498 and 9656 ACE Reaction Flasks.

These PYREX® 4L volumetric flasks provide improved lab convenience, broad selection and precise volume measurement. The strength of these flasks has been increased appreciably through machine-blown bodies to which are sealed heavy-tubing necks tooled for No. 38 Standard Taper pennyhead glass…

Round bottom borosilicate glass flask with standard taper center neck and a 0-4 Hi-Vac valve for precise control. Flask is ideal for simple NO-AIR and vacuum applications. Outlet arm is 8MM and can be fitted with a rubber septa for insertion of samples or additives via syringe.

Conical 4" (10.2cm) neck for use with 6475, 6476, 6477, 6479, 6480, 6481, 6491, 6492, 6497, 6498 and 9656 ACE Reaction Flasks. Supplied with three outer joints in line, plus a 10/30 joint for a ground joint thermometer. Use 6496 Clamp for securing to f