Corning – Pyrex – Short Ring Neck Boiling Flask, Round Bottom

PYREX® round bottom boiling flasks have short ring necks and take a No. 5 rubber stopper. These ring neck boiling flasks are precisely tooled for uniform stopper fit. These flasks are used in applications requiring rigid stoppering and as wash bottles in routine lab washing. They are manufactured from No. 7740 borosilicate glass.

Inquiry Now

Overview

Features

Specifications

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 toughest lab conditions. The normal working temperature for PYREX® boiling flasks is 230°C.

Key Features

Uniform Stopper Fit: The flask’s ring neck is precisely tooled to ensure a consistent and secure fit for No. 5 rubber stoppers, enhancing safety and reliability during use.
Reinforced Rim: Designed with a reinforced rim, the flask provides increased mechanical strength, reducing the risk of breakage and extending its durability in laboratory settings.

Technical Specifications

Product Number	Product Name	Qty./Pk	Qty./Cs	Brand
4260-12L	PYREX® 12L Short Ring Neck Boiling Flask, Round Bottom	1 / Pk	1 / Cs	PYREX®
4260-1L	PYREX® 1L Short Ring Neck Boiling Flask, Round Bottom	6 / Pk	12 / Cs	PYREX®
4260-22L	PYREX® 22L Short Ring Neck Boiling Flask, Round Bottom	1 / Pk	1 / Cs	PYREX®
4260-250	PYREX® 250 mL Short Ring Neck Boiling Flask, Round Bottom	1 / Pk	1 / Cs	PYREX®
4260-2L	PYREX® 2L Short Ring Neck Boiling Flask, Round Bottom	1 / Pk	18 / Cs	PYREX®
4260-3L	PYREX® 3L Short Ring Neck Boiling Flask, Round Bottom	1 / Pk	1 / Cs	PYREX®
4260-500	PYREX® 500 mL Short Ring Neck Boiling Flask, Round Bottom	1 / Pk	1 / Cs	PYREX®
4260-5L	PYREX® 5L Short Ring Neck Boiling Flask, Round Bottom	6 / Pk	6 / Cs	PYREX®