Glass Test Tube 15*100 mm With Wooden Cork Plug Diameter 15 mm Thick Glass Test Tube 11 ml Resistant High Temperature 10 / PK|glass test tube|test tubeglass tube - AliExpress
15 mm Tube x BSPP L Series Straight Male Stud – Alabama Industrial Products
Tube de liaison Diam.15 mm Long.110 cm - COMAP | Bricoman
Amazon.com: Brush Diameter 15mm 19mm -CPAP Tube Cleaning Brush-Suitable for Most CPAP Hose Type (Blue) : Health & Household
Lot of 2 Olympus MB-142(k) Reusable Bite Block Insertion Tube Diameter 15mm 252G | eBay
VISIARO - Yellow PVC Coated Hard Copper Tube, 1mtr long, Outer Diameter - 15 mm
Vogel / SKF 510-412 - Straight connector - for tube Ø 15 mm (d) - 10