December Gardening Checklist for Northern California Gardeners
Dec 20th 2025
The Barbed Reducing Tee is a critical component for customizing the layout of large-scale irrigation systems. It allows you to split your main water line into two directions while simultaneously reducing the tubing size on the branch (or run), eliminating the need for extra bushings or reducers. This fitting is essential for feeding smaller zones from a larger header using Polyethylene Tubing.
Constructed from durable grey Schedule 40 PVC, these tees feature sharp, aggressive barbs on all three ends. This ensures a tight, professional-grade connection that resists pull-out. To guarantee a leak-proof seal under the pressure fluctuations of a commercial system, we recommend securing all connection points with stainless steel worm gear clamps.
Detailed specs for precision planning.
| Specification | Details |
|---|---|
| Product Type | Barbed Reducing Tee (Insert x Insert x Insert) |
| Connection Style | Barbed Insert (Fits inside tubing) |
| Material | Grey Schedule 40 PVC |
| Fastening Requirement | Requires Worm Gear Clamps on ALL ends |
| Tubing Compatibility | Polyethylene (Oval Hose or Standard Poly) |
| Common Brand Names | Dura, Lasco |
Follow these steps to create a secure 3-way connection.
Step 1: Prep the Tubing
Cut your main line where the tee will be installed, and prepare your branch line. Ensure all cuts are square. For larger tubing, dip the ends in hot water to soften them for easier insertion.
Step 2: Position the Clamps
Slide a stainless steel worm gear clamp onto all three sections of tubing before inserting the fitting.
Step 3: Insert the Tee
Push the barbed ends firmly into the tubing. Ensure you match the correct tubing size to the correct port on the reducing tee (e.g., larger tubing on the run, smaller tubing on the branch).
Step 4: Secure the Connection
Slide the clamps into position over the barbs (do not clamp at the very edge). Tighten all three clamps firmly with a nut driver.
Verify your tubing sizes:
Ensure a successful installation with these essential accessories:
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