Good workmanship: The lock nut has non-slip strips and cannot be loosened and tightened. There are sealing rings to prevent water seepage. Stainless steel full copper nut, more durable.Easy installation and cleaning: The tube cooler siphon standard 1 connection can be quickly installed in a few steps. The sewer pipe can be disassembled and cleaned in minutes. The drain pipe under the bath or sink will never be blockedOne size: Standardized 1 design fits most commercial sinks, gutters and vanities. It is the best choice for commercial and home use.U-Shape Leak-Proof Design: U-shape deodorant design to avoid unpleasant odor, silicone seal, you dont worry anymore about rings and other small valuable objects falling and draining into the sewerHigh-quality materials: Made of high-quality chrome-plated stainless steel, the seal is made of high-quality silica gel material, anti-corrosion, anti-oxidation, no rust, no scale and Corrosion Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.