PACKAGE INCLUDED: You get 5pcs pig nipple waterer with Filter + 5pcs water tank connector + 1pc hole opener + 1pc PTFE tape. Wrap PTFE tape around the threaded interface during installation and connect it to the pipeline to prevent leakage. Water tank connector thread female 1/2 in, male 3/4 in. DIMENSION: The pig nipple total size: 2. 4Inch Length x 0. 78Inch Diameter, thread size 1/2Inch, brass water tank connector thread female 1/2 in, male 3/4 in. Open-hole diameter is 26mm. MATERIAL: Hog nipple waterer is made of stainless steel, They have superior rust resistance and the excellent of oxidation resistance, and water tank connector is made of brass, can to use for a long time. You no longer worry about them rusting and breaking. AUTOMATIC DRINKING: When the pig's mouth touches the metal bar, the water flow out automatically and automatically close when it leaves, so could reduce wasting water. The pig waterer could prevent leakage (use PTFE tape), could also prevent bacterial wilt and keeping healthy for piggies. WIDE APPLICATION: The auto stainless steel goat waterer is Suitable for sows, Boards, piglets, growers, piglets, fattner pigs, dogs, goats and other livestock automatic water drinker/bowl. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Silver Material:copper+stainless steel Package Contents: 5 * Pig Nipple Waterer 1 * hole opener 2 * raw material belts(The color is random, and the designation is not accepted) 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.