"WHEATON" Glass Filtration Bells, with base-plate, 1-&2-Lit., 진공 여과 벨-자, with Open top, Screw-cap/Seal-Liner, ASTM/USP/ISO
"SCHOTT-DURAN" Glass Bell Jars with knob, DURAN™ 글라스 벨자, 손잡이 부착형
" SCHOTT-DURAN" : Glass Bell Jars for Vacuum, DURAN™ 글라스 진공 벨자, with 34/35 Socket joint