Upper end is tooled to obtain a thickened portion and flat top. Top is finely ground for a leak-proof fit with covers LG-8030 to LG-8050, ML-1285 and ML-1286.

ML-1281-700

ML-1281-702

LG-8010-100

LG-8010-102

LG-8010-108

Note:
Use clamp ML-1288-700 for flasks beginning with ML (2" ID).
Use clamp LG-8070-100 for flasks beginning with LG (4" ID)