3" Diameter Snorkel Tubing
I ordered a bunch of this stuff from Mcmaster-Carr for my snorkel project. Now I have 8ft left. The specs are below. It has a 3" inside diameter and works GREAT for a snorkel. Mcmaster price is $6.38 a foot, I'll sell you the entire 8ft section for $45 including shipping.
General Purpose Blended Polypropylene/Rubber Duct Hose with Wear Strip
Temperature Range: -60° to +275° F
Abrasion Resistance: Very good
Compresses 33% of extended length
This blend of polypropylene and rubber, also known as TPR (thermoplastic rubber), handles a wide variety of applications at higher temperatures than plastic. Hose has an enclosed copper-coated steel wire support plus a wear strip to protect hose from damage caused by dragging. Material thickness is 0.030".
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