Summary

Tube 300 mm (1 foot) long, 95 mm diameter (3 3/4 inch).
Threaded end caps.
I created it to hold water proof gear on back of motorcycle.
But it could be used for spaghetti storage, or anything you can use it for.

Instructions

WPTube.stl is centre section, has push together fittings top and bottom, print 2 off and plug together.
WPTubeT.stl is top section with threads on top outside lip to accept screw on lid. Print 1 and plug on top of centre section.
WPTubeB.stl is bottom section with threads on bottom inside lip to accept screw on base. Print 1 and plug centre section onto top of it.
WPTubeTop.stl is screw lid. Print 1 off and screw onto top.
WPTubeBot.stl is screw base. Print 1 and screw onto base.

I made it out of White PLA.
WP stands for 'Water Proofs'. A Water Proofs Tube.
Photos show sections before assembly, sections assembled (without end caps), final assembly with end caps, steel rule to illustrate size.

Big tube