3-way: 3-way valve diverter valve for surface-mounted diverter switch 1/2 IG to 1/2 AG. Flow direction from 1/2 internal thread to 1/2 external thread. The valve is off plastic, High-gloss chrome-plated and high-quality workmanship. Switch over by turning the handle. The total height is 6.1cm. Diameter without thread 4.cm. External threads are each 1.5cm long. and internal thread 2.5cm long. if you buy several items, 2 or 10, no matter how many, then you ONLY pay shipping for package once. we charge for the shipping what the shipping actually costs. If all ordered items are not automatically combined after purchase and shipping is calculated once or incorrect costs are calculated, then write us a short email, we will do the calculation manually for you with one-time shipping, and send you.