Check the listing for details. Hydro-Rain BL-406-005 - 1/2" Blu-Lock Elbow 25 Pack. Condition: New, Made in United States. Listed at 35.95 USD. The Hydro-Rain 1/2" Blu-Lock Elbow is the essential component for building flexible, durable swing joints. Designed to connect two pieces of 1/2" Blu-Lock Tubing at a perfect 90-degree angle, this fitting allows you to route water around obstacles or position your spray bodies with precision. Unlike traditional PVC elbows that require primer, glue, and cure time, this fitting utilizes Hydro-Rain's patented push-to-connect technology. Simply push the tubing in, and the stainless steel teeth lock it in place instantly. The fitting retains full swivel movement even after installation, preventing tubing kinks and allowing for easy adjustments in tight trenches. It is one of the fastest and most reliable irrigation fittings available for residential and commercial sprinkler installation.