1. Efficiency Filtration: This refrigerator water purifier adopts a multilayer composite filtration system that effectively removes residual chlorine, heavy metals, sediment, and other impurities in water. The specially designed coconut shell activated carbon layer provides deep adsorption, ensuring every cup of water dispensed from the fridge is fresh and sweet, making it ideal for coffee and tea lovers. 2. Wide Compatibility: Designed for multibrand refrigerators, its snapin interface is compatible with mainstream models like Brand Names, requiring no professional tools or complex modifications. Installation is completed in just three steps. The unique quickrelease structure makes cartridge replacement as easy as changing a light bulb, even for the elderly. 3. Replacement: As a professional replacement for the DA9717376B cartridge, this product strictly adheres to original size and interface standards while featuring an enhanced filtration formula that improves efficiency without compromising water flow rate. It delivers the same sealing performance as the original cartridge. 4. Durable Material: The filter housing is made of onepiece molded ABS resin, resistant to deformation under hot and cold conditions. The internal ultrasonic welding process, combined with a dual silicone sealing design, prevents leakage risks. The core filter material meets NSF/ANSI 42 53 certifications, ensuring safe and effective use without pretreatment, along with a pressureresistant structural design.