Heavy-Duty Acrylic Tube With End CapsDamage Resistant - Alibaba.com
Clear Tube End Caps - 2", Black S-6218 - Uline
Flexible Tube - Clear with End Cap Included caps and the bottles Flexible Tube - Clear with End Cap Included fit as caps, closures from eBottles.com 1-888-215-0023
Plastic Clear Caps - Product - Cleartec Packaging
Tube-Pak and Cap | Clear Storage Tube : TAP Plastics
Plastic Tubes, Clear Plastic Round Tube w/ Silver Metal Screw Threaded Lined Cap
Clear Tubes With Golden Caps | Shop PaperMart.com
STSS-509CG 0.5 mL Clear Plastic Tubes with End Caps | PakGent
Amazon.com : Prestige Import Group - 1.75" x 8" Transparent Clear Plastic (PETG) Storage Tubes with Red Lid - 5 Pack : Office Products