Understanding Tubing Fittings

The article below gives a quick description of each type of fitting. At the bottom of the page, you can see each of these fittings in action.

Types of Fittings and Their Purpose

Example Product	General Name	Description
	[A] Spout	The spout will connect the tree to your dropline tubing. Each spout will have TWO sizes listed in spout specs: • TAP HOLE SIZE — typically either 5/16” or 1/4“. • TUBING SIZE COMPATIBILITY — options are either 5/16” or 3/16“ (See part A in the photos below)
	[B] Dropline Tee	This Tee contains three barbed connections. All three connections are hollow. This allows sap to flow from the tree’s dropline into the lateral line. It also allows sap from the upstream trees to pass through the Tee on its way to the collection tank. (See part B in the photos below)
	[C] Endline Tee	On the last tree on a lateral line, some folks may choose to use an “Endline Tee” rather than a regular Dropline Tee. Just like the Dropline Tee, the Endline Tee contains three barbed connections. However, only TWO out of the three connections allow sap to flow and the third barb is plugged. This allows sap to flow from the LAST tree’s dropline into the lateral line. (See part C in the photos below) As of 2022, Smoky Lake has discontinued carrying the Endline Tee. Instead, we recommend using a regular Dropline Tee at each tree. This just keeps things simpler for set up.
	[D] Endline Loop or End of Line Slider	These types of fittings are used to terminate the lateral line at the end tree and hold the tubing tight. (See part D in the photos below)
	[E] Saddles	These are used in larger tubing systems to connect a lateral line to a main line. They are available in a couple different styles (90º connection vs straight connection).

Installation Examples

More Help Getting Started

If this is your first time installing a small tubing system in your woods, we highly recommend the Beginner Tubing Kit. This kit will have everything you need to get started, including with a handy quick-start guide.