Labasics Rubber Stopper (10 Pack), 10 Pack 19# Natural Septum Fit for 19/22 Outer Joint Lab Glassware, Sleeve Type

Pack of 10 The 19 mm (19#) stopper with an inner diameter is ideal for laboratory glassware equipped with a corresponding 19/22 joint premium natural rubber, reusable, avoid cross-contamination for optimal use Precision-shaped, accurately sized, smooth-surfaced, and durable for long-lasting use Warranty: Labasics 1-year limited warranty; if received damaged, please contact us immediately; we will solve it until satisfied