Featuring a center neck and two side necks with full length outer Standard Taper joints, this borosilicate glass 3-neck reaction vessel lid/cover has an 6-5/8" flange O.D. and comes with a size 359 O-ring. Designed to be used with 2000mL, 3000mL, and 4000mL cylindrical reaction vessels (LG-8075, LG-8079A, LG8079B, and LG-8079C).
NOTE: Use LG-7316-108 clamps with this lid.