Featuring a center neck and two side necks with full length outer Standard Taper joints that are 180° apart, these borosilicate glass reaction vessel lids have a conical flange. The bottom part of lid is finely ground for a leak-proof fit with flask.
LG-8030 is used on cylindrical or spherical reaction vessels with a 4" I.D. flange.
NOTE: Use clamp LG-8070-100 for flasks beginning with LG (4" I.D.).