The Hydro-Rain 3/4" Blu-Lock Coupler is the fastest way to connect two pieces of 3/4" Blu-Lock tubing. Whether you are extending a lateral line to reach new rotors or repairing a cut in your pipe, this fitting creates a permanent, leak-proof seal without the need for primers or glues. It uses a high-performance push-to-connect design that has made Blu-Lock one of the most trusted names in modern irrigation fittings.
Traditional PVC repairs require dry pipes and cure times, but this coupler works instantly—even in wet trenches. The stainless steel retainer ring grips the tubing tightly, while the specialized seal ensures performance under high pressure surges, making it the ideal choice for professional installations and quick fixes alike.
Designed for 3/4" systems.
| Specification | Details |
|---|---|
| Product Type | 3/4" Coupler (Union) |
| Connection 1 | 3/4" Blu-Lock Push-to-Connect |
| Connection 2 | 3/4" Blu-Lock Push-to-Connect |
| Operating Pressure | Up to 80 PSI (Constant), 100 PSI (Surge) |
| Material | UV-Resistant ABS Body, Stainless Steel Teeth |
| MPN | BL-429-007 |
| Common Brand Names | Hydro-Rain, Blu-Lock |
Follow these steps for a secure connection.
Step 1: Prepare the Ends
Ensure both pieces of 3/4" Blu-Lock tubing are cut squarely. Remove any dirt, mud, or burrs from the surface.
Step 2: Connect First Side
Insert the first tube into the coupler until it hits the internal stop. You will feel it pass the gripping ring.
Step 3: Connect Second Side
Push the second tube into the opposite side of the coupler firmly.
Step 4: Verify
Pull back gently on both sides to confirm the stainless steel teeth have locked the pipe in place. The fitting should swivel freely.
Ensure you have the correct tubing:
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