3M RBE-CMP Breathing Tube Clamp For use with breathing tube models RBE-BTB | Fisher Scientific
Glarks 7 x 3m Worm Gear Clamp with Locks, 304 Stainless Steel, Large Adjustable Pipe Clamps with 6 Fasteners for Tubing Guides, Rod Securing and Strapping (3m) : Amazon.de: DIY & Tools