PACKAGE INCLUDED: 5 pcs pig nipple waterer with filter, 5 pcs water tank connector, 1 pc hole opener, 1 pc 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: Pig nipple total size: 2.4 inch length x 0.78 inch diameter, thread size 1/2 inch. Open-hole diameter is 26 mm. MATERIAL: Hog nipple waterer is made of stainless steel, offering superior rust resistance and excellent oxidation resistance. Water tank connector is made of brass for long-term use. No need to worry about rusting or breaking. AUTOMATIC DRINKING: When the pig touches the metal bar with its mouth, water flows automatically and stops when released, helping reduce water waste. The pig waterer prevents leakage (use PTFE tape), helps prevent bacterial contamination, and supports animal health. WIDE APPLICATION: Suitable for sows, boars, piglets, growers, finisher pigs, dogs, goats, and other livestock as an automatic water drinking solution. COLOR: Silver MATERIAL: Brass and stainless steel PACKAGE CONTENTS: 5 x Pig Nipple Waterer 1 x Hole Opener 2 x Raw Material Belts (color may vary, no specific designation accepted) Note: Light reflection and different displays may cause slight color differences between the image and actual item. Measurement allows an error of +/- 1-3 cm. Only the items listed above are included; other products are not included.