Laboratory flasks are vessels or containers that fall into the category of laboratory equipment known as glassware.

In laboratory and other scientific settings, they are usually referred to simply as flasks.

Flasks come in a two shapes round, cylindrical and a wide range of sizes, but a common distinguishing aspect in their shapes is a wider vessel "body" and one (or sometimes more) narrower tubular sections at the top called necks which have an opening at the top.

Laboratory flask sizes are specified by the volume they can hold, typically in metric units such as millilitres (mL or ml) or litters (L or l).

Multi Neck Round Bottom Flask

Brand	Unity glass industry
Usage/Application	Chemical Laboratory
Color	Transparent
Capacity	100 ml, 250 ml, 500ml, 1000 ml, 2000 ml, 3000 ml, 5000 ml, 10000 ml ,20000 ml
Material	Borosilicate Glass 3.3
Temp	Up to 400°C

Conical Flask

Brand	Unity glass industry
Usage/Application	Lab
Shape	Conical
Capacity	25 ml to 5000 ml
Material	Borosilicate Glass
Color	Transparent

Filtration Flask

Brand	Unity glass industry
Usage/Application	Chemical Laboratory
Capacity	100ml. to 10000ml.
Shape	Conical
Material	Borosilicate Glass
Color	Transparent
Design Type	Filtration

Reaction Vessel

Brand	Unity glass industry
Usage/Application	Chemical Laboratory
Capacity	100ml. to 10000ml.
Shape	Spherical
Material	Borosilicate Glass
Color	Transparent
Design Type	Filtration
Temperature	Upto 400 deg C

Reaction Kettle

Brand	Unity glass industry
Usage/Application	Chemical & Pharma Laboratory
Shape	Cylindrical
Material	Borosilicate Glass
Type	Heavy-Wall Glass
Design Type	Bottle
Temperature	Upto 400 deg C

Reagent Bottle

Brand	Unity glass industry
Material	Borosilicate Glass
Color	Transparent

Screw Cap Mobile Phase Bottle

Brand	Unity glass industry
Cap Type	Screw Cap GL 45
Design Type	Standard
Capacity	60ml to 10000ml
Material	Glass

Aspirator Bottle

Brand	Unity glass industry
Color	Transparent
Capacity	500ml to 20000 ml
Material	Borosilicate Glass

Amber Bottle

Brand	Unity glass industry
Color	Amber Glass
Size	60 ml to 2000 ml
Material	Glass
Neck type	GL 45 mm Din Neck

Gas washing Bottles

Brand	Unity glass industry
Color	Transparent
Size	125ml to1000 ml
Material	Glass
Neck Finish	18 mm Din Neck

Weighining Bottles

Brand	Unity glass industry
Color	Transparent and amber
Size	15 ml to 75 ml
Material	Borosilicate Glass