Canary-Safe Cap 2, GL45, 2 Standard Tubing Ports with Shut-Off Valves (CC1012) - Analytical Sales and Services, Inc.
Gl 45 Screw Cap | Pipes - Polypropylene 45 180°c Temperature Pipes Tube Hose Steel - Aliexpress
EZBio® GL45 Closed Cap, White PP for Plastic Bottles – Foxx Life Sciences
Pastein Blue GL45 1-Port Safety Filling Cap with One Hole for Glass Bottles, 1/8 Inch OD Tubing, Complete Kit (Case of 2): Amazon.com: Industrial & Scientific