PYREX® GL45 Multi-connection Screwcap, Connection System, For All GL45 BottleWith 2 or 3 Ports, Accommodated 4 Tube Diameters (OD : 1.6, 3.0, 3.2 and 6.0mm), GL45용 4멀티 컨넥터 스크류캡 (SL21CAT00000767)