High-Flow Corners. Heavy Duty Retention.
The Dura 1 1/4″ Barbed Elbow is a heavy-duty insert fitting designed to create secure 90-degree turns in large-diameter poly tubing. Ideal for agricultural mainlines and commercial landscape headers, this fitting connects two pieces of 1 1/4″ Polyethylene Tubing without restricting water flow. As one of our toughest irrigation fittings, it is molded from Schedule 40 PVC and features sharp, multi-barb ridges that “bite” into the tubing wall for a permanent hold.
Unlike smaller compression fittings, this large-diameter insert elbow requires stainless steel hose clamps to ensure a blowout-proof seal under pressure. It is manufactured in the USA by Dura Plastics, ensuring consistent quality and dimensional accuracy for your critical water lines.
- Aggressive Barb Design: The multiple sharp ridges provide maximum grip retention, preventing the tubing from slipping off even when water pressure fluctuates.
- Full Flow Profile: Designed to minimize friction loss, ensuring that water volume remains high as it turns the corner.
- Durable PVC Construction: Made from high-impact Gray Schedule 40 PVC, providing excellent resistance to UV rays, chemicals, and physical impact.
- Versatile Application: Perfect for trench installations, orchard supply lines, and vineyard irrigation where rugged reliability is required.
Verified specifications for large-diameter systems.
| Specification | Details |
|---|---|
| Product Type | Insert Elbow (90°) |
| Connection 1 | 1 1/4″ Barb (Insert) |
| Connection 2 | 1 1/4″ Barb (Insert) |
| Compatible Tubing | 1 1/4″ ID Polyethylene Mainline |
| Material | Schedule 40 PVC (Gray) |
| Pressure Rating | Max 100 PSI (Clamp Dependent) |
| MPN | 1406-012 |
| Required Accessory | Stainless Steel Hose Clamps (Sold Separately) |
Secure connections require heat and clamps.
Step 1: Prep the Tubing
Cut your 1 1/4″ poly tubing squarely. Crucial Step: Slide a Stainless Steel Hose Clamp onto the tubing before inserting the fitting.
Step 2: Soften the Ends
Large diameter poly tubing can be stiff. Dip the end of the tubing in hot water for 10-20 seconds to soften it. This makes insertion much easier.
Step 3: Insert the Elbow
Push the barbed end of the elbow completely into the tubing until it hits the stop. Use a rocking motion if necessary.
Step 4: Clamp it Down
Slide the hose clamp over the barbed section (not past it). Tighten the clamp screw firmly using a nut driver or flathead screwdriver until the clamp bites slightly into the tubing.








