"Torrenti Ball Valve Double Union Bsp Pvc 3/4 Inch. Ensure Threaded Ends Are Not Connected With Cone Shaped Male Threads And Avoid Using Hemp Or Similar Materials. Carefully Align The Installation And Ensure Proper Pipe Length. Tighten The Union Nut Hand Tight Only Avoiding The Use Of Wrenches. Unions Should Not Be Used To Pull The System Together. These Precautions Help Maintain The Integrity Of The Valve And Prevent Damage During Installation. Ideal For Use In Water Supply Systems The Valve Ensures Secure Connections And Reliable Performance In Various Applications."