Netafim Techline EZ 12mm Insert Tee

A quick guide to correctly inserting your 12mm tee fitting for a leak-proof branch.

Step 1: Cut the Tubing
Using a pair of tubing cutters, make a clean, straight 90-degree cut on the ends of your 12mm Netafim Techline EZ tubing. Jagged cuts can lead to leaks around the barbs.

Step 2: Warm the Tubing (Optional)
If your tubing feels cold or stiff, let the ends sit in direct sunlight for 10 minutes or briefly dip them in hot water. This softens the plastic, making insertion over the tee significantly easier.

Step 3: Push the Fitting In
Firmly grasp the tubing and push the Netafim Techline EZ 12mm Insert Tee straight into the open end. Rock the fitting slightly side to side until the tubing slides completely over the barb and sits flush against the center stop.

Step 4: Connect Remaining Branches
Repeat the push-fit process on the remaining two sides of the tee to complete your intersection, ensuring all three tubes are pushed firmly against the center of the fitting.

During spring startup, how do I check the Netafim Techline EZ 12mm Insert Tee for freeze damage?
Turn on the water and inspect the Netafim Techline EZ 12mm Insert Tee for hairline cracks or dripping. If the winter freeze stretched the tubing, cut the ends and re-insert the fitting to prevent blowouts.

Water expanding during winter freezes can sometimes warp the rigid plastic of the fitting or permanently stretch the tubing around the barb. Doing a visual check during spring startup ensures your system runs perfectly all season.

Will the Netafim Techline EZ 12mm Insert Tee fit standard 1/2-inch poly tubing?
No, this tee fitting is designed exclusively for 12mm tubing with a 0.426-inch inside diameter. Standard 1/2-inch tubing is too large and will leak immediately if attached to this fitting.

Standard 1/2-inch poly tubing typically has an inside diameter of 0.600". If you try to use this 12mm fitting with that tubing, it will slide right off as soon as the system pressurizes.

Does the Netafim Techline EZ 12mm Insert Tee require hose clamps?
No, the Netafim Techline EZ 12mm Insert Tee does not require hose clamps. The sharp barbs create a secure friction fit that holds water effectively up to 50 PSI.

As long as you are using the correct 12mm tubing and your water source is properly pressure-regulated below 50 PSI, the friction from the barbs is all that is necessary for a permanent, watertight seal.

How do I remove a Netafim Techline EZ 12mm Insert Tee if I need to change my layout?
Do not try to pull the Netafim Techline EZ 12mm Insert Tee out, as you may damage the barb. Instead, slice the tubing carefully along the barb or cut the tubing entirely and use a fresh section.

Because these fittings are designed to grip tightly, pulling on them can warp the barbs, leading to leaks if you try to reuse them later. Cutting the tubing off is the safest removal method.