Burette, Over Flow Cup, Automatic Zero, 3 ways Screw type PTFE Needle Valve Stopcock, "GWL", Accuracy as per Class `B' of IS 1997 : 2008.
| Cat. No. | Socket | Cone | Effective Length mm. |
| GWL360/1 | 19/26 | 24/29 | 150 |
| GWL360/2 | 19/26 or 24/29 | 24/29 | 200 |
| GWL360/3 | 19/26 or 24/29 | 24/29 | 250 |
