This is a factory second listing, all Glassware products in B grade. All Silicone stopper are A grade

The product NOT suitable for heat up function, but works fine with liquid mix and storage. 

All products are brand new. 

We have found some bubbles at base or side wall while we pack the product, the bubble diameter over 3mm. 

Some products maybe slightly over printed,  little bit extra graduation mark paints on the glass

We will keep update this listing when we find any more B grade glass. 

If you need more than the listed quantity, please contact us.

Grab your bargain.

This product offer Buy 2 get 1 FREE until 17/01/2026

Product:  

A grade Silicone Lid

B grade Conical Flask (narrow neck)

BoroThis product offer Buy 2 get 1 FREE until 17/01/2026silicate 3.3 Glass

50/100/250/500/1000 with Standard Uniform Wall version

2000/3000/5000 with Advance Uniform Wall, slightly thicker

Heat and Thermal Shock Resistant

White graduation markings

White note writing display

This is a variation listing of Boro 3.3 glass conical flask, we have listed 1x or 2x on single size, also set of the flasks.

eg. 50ml+100ml, which is 1x 50ml +1x100ml, two flasks in one package.

Buy more save more!

Please note: all flasks graduation markings are approximate.

We have followed lab ware in stock.