DONLAB FLK-04 ASTM STD Glass 24/40 Joint Single Neck Flat Bottom Boiling Flask 250ml, 500ml

The delivery time is 5-10 working days to US, CA, AU.This series of glass labware are produced strictly according to ASTM Standards.1. The products are made of Schott Duran Borosicate 3.3 tube.2. The glassware are man blowing produced by skilled workers.3. Each glassware is crystal clear. The thickness is heavy and uniform. It is flawfree that no any bubble or wrinkle.Cat.NO.        Product NameFLK-04-250     250mL Single Neck Flat Bottom Boiling FlaskFLK-04-500      500mL Single Neck Flat Bottom Boiling Flask Capacity: 250ml 24/40 joint Single neck, flat bottom Heavy wall durable design The man-blowing Borosilicate 3.3 glass is uniform and flawfree