Item Name: Rotating Joint Water rotating joint/rotary joint/water swivel coupling - Rotary joint, also referred to as a rotary union or rotating union, permits the flow of various media from a stationary supply pipe and into and/or out of rotating equipment. Heat transfer and hydraulic media typically used with rotary joints and rotating unions include steam, water, thermal oil, hydraulic oil, air, and coolant water. Note:Due to different factory batches, the words of products are different, and the color and appearance of product accessories are slightly different, but it does not affect the normal use. Colour:As Shown Material:copper Package Contents: 1 * 6 points 3/4 HS-G20-8 left swivel joint Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.