Wiring conduit

The aviation-electrical aisle at Lowes or Home Depot has smaller diameter flex conduit, and/but it is split. It even comes in a variety of colors. Automotive stores probably have the same thing.

Another potential 'conduit' is underground sprinkler pipe/hose. It is a smooth (not corregated) thin-wall pvc a bit smaller in diameter (about 1/2" if memory serves me correctly.

McMaster-Carr also has some, but I don't recall the sizes.

Dennis Glaeser
7A
 
conduit

I have just installed the thin wall pvc pipe mentioned (got it a Lowes) it is 5/8 inch OD and I installed it per the Ornoff video and with the inline coupler glued on each end it hold the pipe in positon in the wing and provides a rounded exit to preven wire chafing